 
  [(1,3-Diarylallyl)Pd(PPh3)2]+ (Aryl = Ph) |  | E Parameter: -14.14
  |     | Organometallics 2012, 31, 2416-2424 DOI: 10.1021/om3000357 | 
 
  [(1,3-Diarylallyl)Pd(PPh3)2]+ (Aryl = 4-(dimethylamino)phenyl) |  | E Parameter: -14.46
  |     | Organometallics 2012, 31, 2416-2424 DOI: 10.1021/om3000357 | 
 
  [(1,3-Diarylallyl)Pd(PPh3)2]+ (Aryl = 3,5-difluorophenyl) |  | E Parameter: -14.21
  |     | Organometallics 2012, 31, 2416-2424 DOI: 10.1021/om3000357 | 
 
  Vilsmeier ion | 0 | E Parameter: -5.77
  |   | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  Umemoto II (triflate) | 0 | E Parameter: -12.80
  |     | Eur. J. Org. Chem. 2024, 27, e202400085 DOI: 10.1002/ejoc.202400085 | 
 
  Umemoto I (triflate) | 0 | E Parameter: -13.08
  |     | Eur. J. Org. Chem. 2024, 27, e202400085 DOI: 10.1002/ejoc.202400085 | 
 
  Umemoto I (tetrafluoroborate) | 0 | E Parameter: -13.39
  |     | Eur. J. Org. Chem. 2024, 27, e202400085 DOI: 10.1002/ejoc.202400085 | 
 
  tropylium ion | 0 | E Parameter: -3.72
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  tritylium ion (Ph3C+) | 0 | E Parameter: 0.51
  |   | J. Am. Chem. Soc. 2003, 125, 286-295 DOI: 10.1021/ja021010y | 
 
  tol(t-Bu)2QM | 0 | E Parameter: -15.83
  |      | Angew. Chem. Int. Ed. 2002, 41, 91-95 DOI: 10.1002/1521-3773(20020104)41:1<91::AID-ANIE91>3.0.CO;2-P | 
 
  tol(Ph)CH+ | 0 | E Parameter: 4.43
  |       | J. Am. Chem. Soc. 2012, 134, 13902-13911 DOI: 10.1021/ja306522b | 
 
  thian-4-one (in DMSO) | DMSO | E Parameter: -16.90
  |   | J. Am. Chem. Soc. 2018, 140, 5500-5515 DOI: 10.1021/jacs.8b01657 | 
 
  tert-butyl prop-2-enoate (in DMSO) | DMSO | E Parameter: -20.22
  |     | J. Am. Chem. Soc. 2017, 139, 13318-13329 DOI: 10.1021/jacs.7b05106 | 
 
  pyrN+=CH-CH-Ph | 0 | E Parameter: -9.80
  |     | Angew. Chem. Int. Ed. 2008, 47, 8723-8726 DOI: 10.1002/anie.200802889 | 
 
  pTolCH=N+CH2 (in MeCN) | MeCN | E Parameter: -9.64
  |     | J. Am. Chem. Soc. 2013, 135, 6579-6587 DOI: 10.1021/ja401106x | 
 
  propyn-1-ylium-Co2(CO)6 |  | E Parameter: -0.84
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  pop(tol)CH+ | 0 | E Parameter: 2.16
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  pop(Ph)CH+ | 0 | E Parameter: 2.90
  |       | J. Am. Chem. Soc. 2001, 123, 9500-9512 DOI: 10.1021/ja010890y | 
 
  pipN+=CH-CH-Ph | 0 | E Parameter: -10.30
  |   | Angew. Chem. Int. Ed. 2008, 47, 8723-8726 DOI: 10.1002/anie.200802889 | 
 
  phenyl isothiocyanate | DMSO | E Parameter: -18.15
  |     | J. Am. Chem. Soc. 2020, 142, 8383-8402 DOI: 10.1021/jacs.0c01960 | 
 
  phenyl isocyanate | MeCN | E Parameter: -15.38
  |     | J. Am. Chem. Soc. 2020, 142, 8383-8402 DOI: 10.1021/jacs.0c01960 | 
 
  PhCH=N+Me2 (in MeCN) | MeCN | E Parameter: -9.27
  |     | J. Am. Chem. Soc. 2013, 135, 6579-6587 DOI: 10.1021/ja401106x | 
 
  PhCH=N+(CH2)5 (in MeCN) | MeCN | E Parameter: -9.60
  |     | J. Am. Chem. Soc. 2013, 135, 6579-6587 DOI: 10.1021/ja401106x | 
 
  PhCH=N+(CH2)4 (in MeCN) | MeCN | E Parameter: -9.35
  |     | J. Am. Chem. Soc. 2013, 135, 6579-6587 DOI: 10.1021/ja401106x | 
 
  Ph2C=C=N(+)Me2 | 0 | E Parameter: -1.90
  |   | Synthesis 2025, , eFirst DOI: 10.1055/a-2649-1999 | 
 
  pfp(Ph)CH+ | 0 | E Parameter: 5.20
  |       | J. Am. Chem. Soc. 2012, 134, 13902-13911 DOI: 10.1021/ja306522b | 
 
  pentan-2-one (in DMSO) | DMSO | E Parameter: -22.30
  |   | J. Am. Chem. Soc. 2018, 140, 5500-5515 DOI: 10.1021/jacs.8b01657 | 
 
  Pd-allyl cation |  | E Parameter: -10.11
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  p-tosyl isocyanate | MeCN | E Parameter: -7.69
  |     | J. Am. Chem. Soc. 2020, 142, 8383-8402 DOI: 10.1021/jacs.0c01960 | 
 
  p-quinone (C-H) | 0 | E Parameter: -16.19
  |    | J. Am. Chem. Soc. 2014, 136, 11499-11512 DOI: 10.1021/ja505613b | 
 
  p-nitrophenyl isothiocyanate | DMSO | E Parameter: -15.89
  |     | J. Am. Chem. Soc. 2020, 142, 8383-8402 DOI: 10.1021/jacs.0c01960 | 
 
  p-nitro-cinnamaldehyde (in DMSO) | DMSO |  |   | J. Am. Chem. Soc. 2011, 133, 8240-8251 DOI: 10.1021/ja200820m | 
 
  p-fluoranil (C=O) | 0 | E Parameter: -9.37
  |     | J. Am. Chem. Soc. 2014, 136, 11499-11512 DOI: 10.1021/ja505613b | 
 
  p-fluoranil (C-F) | 0 | E Parameter: -11.12
  |     | J. Am. Chem. Soc. 2014, 136, 11499-11512 DOI: 10.1021/ja505613b | 
 
  p-chloranil (C=O) | 0 | E Parameter: -12.13
  |     | J. Am. Chem. Soc. 2014, 136, 11499-11512 DOI: 10.1021/ja505613b | 
 
  p-chloranil (C-Cl) | 0 | E Parameter: -13.84
  |     | J. Am. Chem. Soc. 2014, 136, 11499-11512 DOI: 10.1021/ja505613b | 
 
  p-CF3-C6H4-CH=N+Me2 (in MeCN) | MeCN | E Parameter: -8.34
  |     | J. Am. Chem. Soc. 2013, 135, 6579-6587 DOI: 10.1021/ja401106x | 
 
  p-AniCH=N+Me2 (in MeCN) | MeCN | E Parameter: -10.69
  |     | J. Am. Chem. Soc. 2013, 135, 6579-6587 DOI: 10.1021/ja401106x | 
 
  p-(methoxy)benzylidenemalononitrile | 0 | E Parameter: -10.80
  |     | J. Org. Chem. 2003, 68, 6880-6886 DOI: 10.1021/jo0344182 | 
 
  p-(methoxy)benzylidene Meldrum's acid | 0 | E Parameter: -10.28
  |     | J. Org. Chem. 2008, 73, 2738-2745 DOI: 10.1021/jo702590s | 
 
  p-(dimethylamino)benzylidenemalononitrile | 0 | E Parameter: -13.30
  |     | J. Org. Chem. 2003, 68, 6880-6886 DOI: 10.1021/jo0344182 | 
 
  p-(dimethylamino)benzylidene Meldrum's acid | 0 | E Parameter: -12.76
  |     | J. Org. Chem. 2008, 73, 2738-2745 DOI: 10.1021/jo702590s | 
 
  oxan-4-one (in DMSO) | DMSO | E Parameter: -17.90
  |   | J. Am. Chem. Soc. 2018, 140, 5500-5515 DOI: 10.1021/jacs.8b01657 | 
 
  o-chloranil (C=O) | 0 | E Parameter: -8.77
  |     | J. Am. Chem. Soc. 2014, 136, 11499-11512 DOI: 10.1021/ja505613b | 
 
  o-chloranil (C-Cl) | 0 | E Parameter: -12.02
  |     | J. Am. Chem. Soc. 2014, 136, 11499-11512 DOI: 10.1021/ja505613b | 
 
  N-methylacridinium ion | 0 | E Parameter: -7.15
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  N-methyl maleimide | DMSO | E Parameter: -14.07
  |     | Eur. J. Org. Chem. 2014, , 2956-2963 DOI: 10.1002/ejoc.201301779 | 
 
  N-ethylidenecarbazolium ion | 0 | E Parameter: 2.41
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  N,N-dimethylprop-2-enamide (in DMSO) | DMSO | E Parameter: -23.54
  |     | J. Am. Chem. Soc. 2017, 139, 13318-13329 DOI: 10.1021/jacs.7b05106 | 
 
  mor iminium | 0 | E Parameter: -8.60
  |     | Angew. Chem. Int. Ed. 2008, 47, 8723-8726 DOI: 10.1002/anie.200802889 | 
 
  methyl(phenyl)methyleneammonium ion | 0 | E Parameter: -5.17
  |   | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  methyl prop-2-enoate (in DMSO) | DMSO | E Parameter: -18.84
  |     | J. Am. Chem. Soc. 2017, 139, 13318-13329 DOI: 10.1021/jacs.7b05106 | 
 
  methoxy-phenylmethylium ion | 0 | E Parameter: 2.97
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  methoxy-(4-methylphenyl)methylium ion | 0 | E Parameter: 1.90
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  methoxy-(4-methoxyphenyl)methylium ion | 0 | E Parameter: 0.14
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  Me2N+=CH-CH-Ph | 0 | E Parameter: -9.20
  |     | Angew. Chem. Int. Ed. 2008, 47, 8723-8726 DOI: 10.1002/anie.200802889 | 
 
  Me2C=C=N(+)Me2 | 0 | E Parameter: -2.80
  |   | Synthesis 2025, , eFirst DOI: 10.1055/a-2649-1999 | 
 
  maleic anhydride | DMSO | E Parameter: -11.31
  |     | Eur. J. Org. Chem. 2014, , 2956-2963 DOI: 10.1002/ejoc.201301779 | 
 
  MacMillan-iminium ion (spiro) | MeCN | E Parameter: -7.67
  |     | Angew. Chem. Int. Ed. 2011, 50, 9953-9956 DOI: 10.1002/anie.201103683 | 
 
  MacMillan-iminium ion (2nd generation) | MeCN | E Parameter: -5.52
  |     | Angew. Chem. Int. Ed. 2011, 50, 9953-9956 DOI: 10.1002/anie.201103683 | 
 
  MacMillan-iminium ion (1st generation) | MeCN | E Parameter: -7.37
  |     | Angew. Chem. Int. Ed. 2011, 50, 9953-9956 DOI: 10.1002/anie.201103683 | 
 
  julBBS | 0 | E Parameter: -13.84
  |     | J. Org. Chem. 2007, 72, 9170-9180 DOI: 10.1021/jo071273g | 
 
  jul-indan-1,3-dione | 0 | E Parameter: -14.68
  |     | Org. Biomol. Chem. 2007, 5, 3020-3026 DOI: 10.1039/b708025e | 
 
  jul(t-Bu)2QM | 0 | E Parameter: -17.90
  |      | Angew. Chem. Int. Ed. 2002, 41, 91-95 DOI: 10.1002/1521-3773(20020104)41:1<91::AID-ANIE91>3.0.CO;2-P | 
 
  jul(S)BBS | 0 | E Parameter: -11.89
  |     | J. Org. Chem. 2007, 72, 9170-9180 DOI: 10.1021/jo071273g | 
 
  jul Meldrum's acid | 0 | E Parameter: -13.97
  |     | J. Org. Chem. 2008, 73, 2738-2745 DOI: 10.1021/jo702590s | 
 
  Jorgensen/Hayashi-iminium ion | 0 | E Parameter: -8.20
  |     | Angew. Chem. Int. Ed. 2008, 47, 8723-8726 DOI: 10.1002/anie.200802889 | 
 
  indolecarboxylate derived iminium ion | dichloromethane | E Parameter: -9.50
  |    | Angew. Chem. Int. Ed. 2009, 48, 5034-5037 DOI: 10.1002/anie.200900933 | 
 
  hexanal (in DMSO) | DMSO |  |   | J. Am. Chem. Soc. 2011, 133, 8240-8251 DOI: 10.1021/ja200820m | 
 
  hex-3-yn-2-one | 0 | E Parameter: -17.90
  |   | Angew. Chem. Int. Ed.  2019, 58, 17704-17708 DOI: 10.1002/anie.201909803 | 
 
  furan-2(5H)-one | DMSO | E Parameter: -20.70
  |     | Chem. Sci. 2021, 12, 4850-4865 DOI: 10.1039/D0SC06628A | 
 
  fumaronitrile | DMSO | E Parameter: -15.71
  |     | Eur. J. Org. Chem. 2014, , 2956-2963 DOI: 10.1002/ejoc.201301779 | 
 
  flavylium ion | 0 | E Parameter: -3.45
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  fc2CH+ | 0 | E Parameter: -8.54
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  fc(Ph)CH+ | 0 | E Parameter: -2.64
  |       | J. Am. Chem. Soc. 2001, 123, 9500-9512 DOI: 10.1021/ja010890y | 
 
  fc(Me)CH+ | 0 | E Parameter: -2.57
  |   | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  fc(ani)CH+ | 0 | E Parameter: -2.90
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  ethyl prop-2-enoate (in DMSO) | DMSO | E Parameter: -19.07
  |     | J. Am. Chem. Soc. 2017, 139, 13318-13329 DOI: 10.1021/jacs.7b05106 | 
 
  ethyl cinnamate (in DMSO) | DMSO | E Parameter: -24.52
  |    | J. Am. Chem. Soc. 2017, 139, 13318-13329 DOI: 10.1021/jacs.7b05106 | 
 
  ethyl 3-nitro-1H-indole-1-carboxylate | 0 | E Parameter: -14.10
  |    | Chem. Commun. 2021, 57, 10071-10074 DOI: 10.1039/d1cc04074j | 
 
  ethyl 2-methylprop-2-enoate (in DMSO) | DMSO | E Parameter: -22.77
  |    | J. Am. Chem. Soc. 2017, 139, 13318-13329 DOI: 10.1021/jacs.7b05106 | 
 
  ethyl 2-(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dien-1-ylidene)acetate | 0 | E Parameter: -12.01
  |     | Chem. Eur. J. 2025, 31, e202501224 DOI: 10.1002/chem.202501224 | 
 
  ethyl (E)-but-2-enoate (in DMSO) | DMSO | E Parameter: -23.59
  |    | J. Am. Chem. Soc. 2017, 139, 13318-13329 DOI: 10.1021/jacs.7b05106 | 
 
  ethenylsulfonylbenzene (in DMSO) | DMSO | E Parameter: -18.36
  |     | J. Am. Chem. Soc. 2017, 139, 13318-13329 DOI: 10.1021/jacs.7b05106 | 
 
  ethenesulfonyl fluoride (ESF) | DMSO | E Parameter: -12.09
  |     | Angew. Chem. Int. Ed. 2016, 55, 12664-12667 DOI: 10.1002/anie.201601875 | 
 
  E)-2,6-di-tert-butyl-4-(3-(4-chlorophenyl)allylidene)cyclohexa-2,5-dien-1-one | DMSO | E Parameter: -16.84
  |     | Org. Lett. 2020, 22, 2182-2186 DOI: 10.1021/acs.orglett.0c00338 | 
 
  dmaBBS | 0 | E Parameter: -12.76
  |     | J. Org. Chem. 2007, 72, 9170-9180 DOI: 10.1021/jo071273g | 
 
  dma(t-Bu)2QM |  | E Parameter: -17.29
  |      | Angew. Chem. Int. Ed. 2002, 41, 91-95 DOI: 10.1002/1521-3773(20020104)41:1<91::AID-ANIE91>3.0.CO;2-P | 
 
  dma(S)BBS | 0 | E Parameter: -10.73
  |     | J. Org. Chem. 2007, 72, 9170-9180 DOI: 10.1021/jo071273g | 
 
  dma(Ph)2QM | 0 | E Parameter: -13.39
  |      | Angew. Chem. Int. Ed. 2002, 41, 91-95 DOI: 10.1002/1521-3773(20020104)41:1<91::AID-ANIE91>3.0.CO;2-P | 
 
  diphenylcarbodiimide | DMSO | E Parameter: -20.14
  |     | J. Am. Chem. Soc. 2020, 142, 8383-8402 DOI: 10.1021/jacs.0c01960 | 
 
  diphenylallylium ion |  | E Parameter: 2.70
  |     | J. Org. Chem. 2011, 76, 9391-9408 DOI: 10.1021/jo201668w | 
 
  dimethylmethyleneammonium ion | 0 | E Parameter: -6.69
  |   | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  dihydro-2H-pyran-2-one | DMSO | E Parameter: -21.80
  |    | Chem. Sci. 2021, 12, 4850-4865 DOI: 10.1039/D0SC06628A | 
 
  diethyl maleate | DMSO | E Parameter: -19.49
  |     | Eur. J. Org. Chem. 2014, , 2956-2963 DOI: 10.1002/ejoc.201301779 | 
 
  diethyl fumarate | DMSO | E Parameter: -17.79
  |     | Eur. J. Org. Chem. 2014, , 2956-2963 DOI: 10.1002/ejoc.201301779 | 
 
  diethyl benzylidene malonate | 0 | E Parameter: -20.55
  |     | Chem. Eur. J. 2008, 14, 9675-9682 DOI: 10.1002/chem.200801277 | 
 
  diethyl 4-nitrobenzylidene malonate | 0 | E Parameter: -17.67
  |     | Chem. Eur. J. 2008, 14, 9675-9682 DOI: 10.1002/chem.200801277 | 
 
  diethyl 4-methyl-benzylidene malonate | 0 | E Parameter: -21.11
  |     | Chem. Eur. J. 2008, 14, 9675-9682 DOI: 10.1002/chem.200801277 | 
 
  diethyl 4-methoxy-benzylidene malonate | 0 | E Parameter: -21.47
  |     | Chem. Eur. J. 2008, 14, 9675-9682 DOI: 10.1002/chem.200801277 | 
 
  diethyl 4-cyano-benzylidene malonate | 0 | E Parameter: -18.06
  |     | Chem. Eur. J. 2008, 14, 9675-9682 DOI: 10.1002/chem.200801277 | 
 
  diethyl 4-(dimethylamino)benzylidene malonate | 0 | E Parameter: -23.10
  |     | Chem. Eur. J. 2008, 14, 9675-9682 DOI: 10.1002/chem.200801277 | 
 
  diethyl 3-chloro-benzylidene malonate | 0 | E Parameter: -18.98
  |     | Chem. Eur. J. 2008, 14, 9675-9682 DOI: 10.1002/chem.200801277 | 
 
  diethyl 2-((julolidine-9-yl)methylene)malonate | 0 | E Parameter: -23.80
  |   | Chem. Eur. J. 2008, 14, 9675-9682 DOI: 10.1002/chem.200801277 | 
 
  diethyl 2-((1-methyl-1,2,3,4-tetrahydroquinolin-6-yl)methylene)malonate | 0 | E Parameter: -23.40
  |   | Chem. Eur. J. 2008, 14, 9675-9682 DOI: 10.1002/chem.200801277 | 
 
  dicarbonyl(cyclopentadienyl)propene-iron(II) |  | E Parameter: -11.20
  |     | Helv. Chim. Acta 2005, 88, 1754-1768 DOI: 10.1002/hlca.200590137 | 
 
  dibenzo[a,d]tropylium ion | dichloromethane | E Parameter: -0.63
  |   | Liebigs Ann. 1995, , 2005-2009 DOI: 10.1002/jlac.1995199511281 | 
 
  diarylallylium ion (4-NMe2)2 |  | E Parameter: -7.50
  |     | J. Org. Chem. 2011, 76, 9391-9408 DOI: 10.1021/jo201668w | 
 
  diarylallylium ion (4-Cl)2 |  | E Parameter: 2.69
  |   | J. Org. Chem. 2011, 76, 9391-9408 DOI: 10.1021/jo201668w | 
 
  diarylallylium ion (4-Br)2 |  | E Parameter: 2.85
  |     | J. Org. Chem. 2011, 76, 9391-9408 DOI: 10.1021/jo201668w | 
 
  diarylallylium ion (3-F)2 |  | E Parameter: 4.15
  |    | J. Org. Chem. 2011, 76, 9391-9408 DOI: 10.1021/jo201668w | 
 
  diarylallylium ion (3,3-F2)2 |  | E Parameter: 6.11
  |     | J. Org. Chem. 2011, 76, 9391-9408 DOI: 10.1021/jo201668w | 
 
  di-p-tolyl-allylium ion |  | E Parameter: 1.23
  |     | J. Org. Chem. 2011, 76, 9391-9408 DOI: 10.1021/jo201668w | 
 
  di-p-anisyl-allylium ion |  | E Parameter: -1.45
  |     | J. Org. Chem. 2011, 76, 9391-9408 DOI: 10.1021/jo201668w | 
 
  cyclopentenone | DMSO | E Parameter: -20.60
  |     | Chem. Sci. 2021, 12, 4850-4865 DOI: 10.1039/D0SC06628A | 
 
  cyclopentanone (in DMSO) | DMSO | E Parameter: -21.00
  |   | J. Am. Chem. Soc. 2018, 140, 5500-5515 DOI: 10.1021/jacs.8b01657 | 
 
  cyclohexenone | DMSO | E Parameter: -22.10
  |     | Chem. Sci. 2021, 12, 4850-4865 DOI: 10.1039/D0SC06628A | 
 
  cyclohexanone (in DMSO) | DMSO | E Parameter: -19.90
  |   | J. Am. Chem. Soc. 2018, 140, 5500-5515 DOI: 10.1021/jacs.8b01657 | 
 
  cycloheptenone | DMSO | E Parameter: -22.00
  |     | Chem. Sci. 2021, 12, 4850-4865 DOI: 10.1039/D0SC06628A | 
 
  cycloheptanone (in DMSO) | DMSO | E Parameter: -22.10
  |   | J. Am. Chem. Soc. 2018, 140, 5500-5515 DOI: 10.1021/jacs.8b01657 | 
 
  cyclobutanone (in DMSO) | DMSO | E Parameter: -17.50
  |   | J. Am. Chem. Soc. 2018, 140, 5500-5515 DOI: 10.1021/jacs.8b01657 | 
 
  cumyl cation |  | E Parameter: 5.74
  |     | Macromolecules 2010, 43, 1719-1723 DOI: 10.1021/ma9024569 | 
 
  cinnamonitrile (in DMSO) | DMSO | E Parameter: -24.60
  |   | J. Am. Chem. Soc. 2017, 139, 13318-13329 DOI: 10.1021/jacs.7b05106 | 
 
  cinnamaldehyde (in DMSO) | DMSO |  |   | J. Am. Chem. Soc. 2011, 133, 8240-8251 DOI: 10.1021/ja200820m | 
 
  carbon disulfide | DMSO | E Parameter: -17.70
  |     | J. Am. Chem. Soc. 2020, 142, 8383-8402 DOI: 10.1021/jacs.0c01960 | 
 
  C7H9+-Fe(CO)3 |  | E Parameter: -9.21
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  C7H7+-Fe(CO)3 |  | E Parameter: -3.49
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  C6H7+-Fe(CO)3 |  | E Parameter: -7.76
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  C6H6OMe+-Fe(CO)3 |  | E Parameter: -8.94
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  butynone | 0 | E Parameter: -16.60
  |   | Angew. Chem. Int. Ed.  2019, 58, 17704-17708 DOI: 10.1002/anie.201909803 | 
 
  butanal (in DMSO) | DMSO |  |   | J. Am. Chem. Soc. 2011, 133, 8240-8251 DOI: 10.1021/ja200820m | 
 
  but-3-en-2-one (in DMSO) | DMSO | E Parameter: -16.76
  |     | J. Am. Chem. Soc. 2017, 139, 13318-13329 DOI: 10.1021/jacs.7b05106 | 
 
  bis(julidin-9-yl)allylium ion |  | E Parameter: -9.78
  |     | J. Org. Chem. 2011, 76, 9391-9408 DOI: 10.1021/jo201668w | 
 
  bis(5-methoxy-1-methylindol-3-yl)methylium ion | 0 | E Parameter: -6.90
  |     | J. Org. Chem. 2015, 80, 8643-8656 DOI: 10.1021/acs.joc.5b01298 | 
 
  bis(1-methylindol-3-yl)methylium ion | 0 | E Parameter: -5.99
  |     | J. Org. Chem. 2015, 80, 8643-8656 DOI: 10.1021/acs.joc.5b01298 | 
 
  bis(1,2-dimethylindol-3-yl)methylium ion | 0 | E Parameter: -10.23
  |     | J. Org. Chem. 2015, 80, 8643-8656 DOI: 10.1021/acs.joc.5b01298 | 
 
  bh6j |  | E Parameter: -17.90
  |    | Chem. Eur. J. 2010, 16, 1365-1371 DOI: 10.1002/chem.200902487 | 
 
  bh6a |  | E Parameter: -18.60
  |    | Chem. Eur. J. 2010, 16, 1365-1371 DOI: 10.1002/chem.200902487 | 
 
  bh 6m |  | E Parameter: -17.30
  |   | Chem. Eur. J. 2010, 16, 1365-1371 DOI: 10.1002/chem.200902487 | 
 
  bh 6l |  | E Parameter: -18.90
  |   | Chem. Eur. J. 2010, 16, 1365-1371 DOI: 10.1002/chem.200902487 | 
 
  bh 6k |  | E Parameter: -18.20
  |   | Chem. Eur. J. 2010, 16, 1365-1371 DOI: 10.1002/chem.200902487 | 
 
  bh 6i |  | E Parameter: -19.10
  |    | Chem. Eur. J. 2010, 16, 1365-1371 DOI: 10.1002/chem.200902487 | 
 
  bh 6f |  | E Parameter: -18.90
  |    | Chem. Eur. J. 2010, 16, 1365-1371 DOI: 10.1002/chem.200902487 | 
 
  benzylidenemalononitrile | 0 | E Parameter: -9.42
  |     | J. Org. Chem. 2003, 68, 6880-6886 DOI: 10.1021/jo0344182 | 
 
  benzylidene-Meldrum's acid | 0 | E Parameter: -9.15
  |     | J. Org. Chem. 2008, 73, 2738-2745 DOI: 10.1021/jo702590s | 
 
  benzhydrylium ion Ph2CH+ | 0 | E Parameter: 5.47
  |       | J. Am. Chem. Soc. 2012, 134, 13902-13911 DOI: 10.1021/ja306522b | 
 
  benzaldehyde-boron trichloride complex |  | E Parameter: 1.12
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  benzaldehyde (in DMSO) | DMSO | E Parameter: -12.90
  |   | J. Am. Chem. Soc. 2018, 140, 5500-5515 DOI: 10.1021/jacs.8b01657 | 
 
  aniBBS | 0 | E Parameter: -10.37
  |     | J. Org. Chem. 2007, 72, 9170-9180 DOI: 10.1021/jo071273g | 
 
  ani(tol)CH+ | 0 | E Parameter: 1.48
  |       | J. Am. Chem. Soc. 2001, 123, 9500-9512 DOI: 10.1021/ja010890y | 
 
  ani(t-Bu)2QM |  | E Parameter: -16.11
  |      | Angew. Chem. Int. Ed. 2002, 41, 91-95 DOI: 10.1002/1521-3773(20020104)41:1<91::AID-ANIE91>3.0.CO;2-P | 
 
  ani(pop)CH+ | 0 | E Parameter: 0.61
  |       | J. Am. Chem. Soc. 2001, 123, 9500-9512 DOI: 10.1021/ja010890y | 
 
  ani(Ph)CH+ | 0 | E Parameter: 2.11
  |       | J. Am. Chem. Soc. 2001, 123, 9500-9512 DOI: 10.1021/ja010890y | 
 
  ani(Ph)2QM | 0 | E Parameter: -12.18
  |      | Angew. Chem. Int. Ed. 2002, 41, 91-95 DOI: 10.1002/1521-3773(20020104)41:1<91::AID-ANIE91>3.0.CO;2-P | 
 
  ani(Br)2QM | 0 | E Parameter: -8.63
  |      | Angew. Chem. Int. Ed. 2002, 41, 91-95 DOI: 10.1002/1521-3773(20020104)41:1<91::AID-ANIE91>3.0.CO;2-P | 
 
  acrylonitrile (in DMSO) | DMSO | E Parameter: -19.05
  |     | J. Am. Chem. Soc. 2017, 139, 13318-13329 DOI: 10.1021/jacs.7b05106 | 
 
  <i>trans-beta</i>-nitrostyrene |  | E Parameter: -13.85
  |     | J. Org. Chem. 2011, 76, 9370-9378 DOI: 10.1021/jo201678u | 
 
  9-phenyl-9H-fluoren-9-ylium | dichloromethane | E Parameter: 2.41
  |     | Chem. Eur. J. 2017, 23, 623-630 DOI: 10.1002/chem.201603963 | 
 
  9-(4-methoxyphenyl)-9H-fluoren-9-ylium | dichloromethane | E Parameter: 0.85
  |     | Chem. Eur. J. 2017, 23, 623-630 DOI: 10.1002/chem.201603963 | 
 
  9-(4-(dimethylamino)phenyl)-9H-fluoren-9-ylium | dichloromethane | E Parameter: -4.51
  |     | Chem. Eur. J. 2017, 23, 623-630 DOI: 10.1002/chem.201603963 | 
 
  6-nitro-tetrazolo[1,5a]pyridine | 0 | E Parameter: -9.05
  |     | J. Org. Chem. 2005, 70, 6242-6253 DOI: 10.1021/jo0505526 | 
 
  6-cyano-4-nitrobenzofuroxan | 0 | E Parameter: -7.01
  |     | J. Org. Chem. 2005, 70, 6242-6253 DOI: 10.1021/jo0505526 | 
 
  5-methoxyfuroxano[3,4-d]pyrimidine | 0 | E Parameter: -8.37
  |     | J. Phys. Org. Chem. 2003, 16, 431-437 DOI: 10.1002/poc.606 | 
 
  4-phenylbut-3-yn-2-one | 0 | E Parameter: -16.90
  |   | Angew. Chem. Int. Ed.  2019, 58, 17704-17708 DOI: 10.1002/anie.201909803 | 
 
  4-nitrobenzodifuroxan (NBDF) | 0 | E Parameter: -6.15
  |     | Chem. Eur. J. 2007, 13, 8317-8324 DOI: 10.1002/chem.200700676 | 
 
  4-nitro-<i>trans-beta</i>-nitrostyrene |  | E Parameter: -12.37
  |     | J. Org. Chem. 2011, 76, 9370-9378 DOI: 10.1021/jo201678u | 
 
  4-nitro-6-(trifluoromethylsulfonyl)benzofuroxan | 0 | E Parameter: -4.91
  |     | J. Org. Chem. 2005, 70, 6242-6253 DOI: 10.1021/jo0505526 | 
 
  4-methyl-<i>trans-beta</i>-nitrostyrene |  | E Parameter: -14.23
  |     | J. Org. Chem. 2011, 76, 9370-9378 DOI: 10.1021/jo201678u | 
 
  4-methoxy-<i>trans-beta</i>-nitrostyrene |  | E Parameter: -14.70
  |     | J. Org. Chem. 2011, 76, 9370-9378 DOI: 10.1021/jo201678u | 
 
  4-fluoro-benzaldehyde (in DMSO) | DMSO |  |   | J. Am. Chem. Soc. 2011, 133, 8240-8251 DOI: 10.1021/ja200820m | 
 
  4-cyano-<i>trans-beta</i>-nitrostyrene |  | E Parameter: -12.61
  |     | J. Org. Chem. 2011, 76, 9370-9378 DOI: 10.1021/jo201678u | 
 
  4-cyano-6-nitro-benzofuroxane | 0 | E Parameter: -6.41
  |     | J. Org. Chem. 2005, 70, 6242-6253 DOI: 10.1021/jo0505526 | 
 
  4-chlorobenzaldehyde-boron trichloride complex |  | E Parameter: 1.44
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  4-bromo-<i>trans-beta</i>-nitrostyrene |  | E Parameter: -13.37
  |     | J. Org. Chem. 2011, 76, 9370-9378 DOI: 10.1021/jo201678u | 
 
  4-bromo-3-nitro-1-tosyl-1H-indole | 0 | E Parameter: -14.60
  |    | Chem. Commun. 2021, 57, 10071-10074 DOI: 10.1039/d1cc04074j | 
 
  4-benzylidene-2,6-di-tert-butylcyclohexa-2,5-dien-1-one | 0 | E Parameter: -15.58
  |     | Chem. Eur. J. 2025, 31, e202501224 DOI: 10.1002/chem.202501224 | 
 
  4-aza-6-nitrobenzofuroxan | 0 | E Parameter: -5.86
  |     | J. Org. Chem. 2005, 70, 6242-6253 DOI: 10.1021/jo0505526 | 
 
  4-(2,2-bis(phenylsulfonyl)vinyl)-N,N-dimethylaniline | DMSO | E Parameter: -16.53
  |     | Chem. Asian J. 2012, 7, 1401-1407 DOI: 10.1002/asia.201101046 | 
 
  4,6-dinitrotetrazolopyridine | 0 | E Parameter: -4.67
  |     | J. Org. Chem. 2005, 70, 6242-6253 DOI: 10.1021/jo0505526 | 
 
  4,6-dinitrobenzofuroxan | 0 | E Parameter: -5.06
  |     | J. Org. Chem. 2006, 71, 9088-9095 DOI: 10.1021/jo0614339 | 
 
  4,6-dinitrobenzofurazan | 0 | E Parameter: -5.46
  |     | J. Org. Chem. 2005, 70, 6242-6253 DOI: 10.1021/jo0505526 | 
 
  3-phenylpropyn-1-ylium-Co2(CO)6 |  | E Parameter: -1.58
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  3-nitro-1-tosyl-1H-indole | 0 | E Parameter: -14.87
  |     | Chem. Commun. 2021, 57, 10071-10074 DOI: 10.1039/d1cc04074j | 
 
  3-methylenetetrahydropyran-2-one | DMSO | E Parameter: -19.50
  |     | Chem. Sci. 2021, 12, 4850-4865 DOI: 10.1039/D0SC06628A | 
 
  3-methylenedihydrofuranone | DMSO | E Parameter: -19.40
  |     | Chem. Sci. 2021, 12, 4850-4865 DOI: 10.1039/D0SC06628A | 
 
  3-methylcyclopentenone | DMSO | E Parameter: -28.90
  |   | Chem. Sci. 2021, 12, 4850-4865 DOI: 10.1039/D0SC06628A | 
 
  3-methylcyclohexenone | DMSO | E Parameter: -29.60
  |   | Chem. Sci. 2021, 12, 4850-4865 DOI: 10.1039/D0SC06628A | 
 
  3-methoxy-benzaldehyde (in DMSO) | DMSO |  |   | J. Am. Chem. Soc. 2011, 133, 8240-8251 DOI: 10.1021/ja200820m | 
 
  3-fluoro-benzaldehyde (in DMSO) | DMSO |  |   | J. Am. Chem. Soc. 2011, 133, 8240-8251 DOI: 10.1021/ja200820m | 
 
  3-chloro-benzaldehyde (in DMSO) | DMSO |  |   | J. Am. Chem. Soc. 2011, 133, 8240-8251 DOI: 10.1021/ja200820m | 
 
  3-benzylidene-1-methyl-3H-indol-1-ium ion | 0 | E Parameter: -1.80
  |     | J. Org. Chem. 2015, 80, 8643-8656 DOI: 10.1021/acs.joc.5b01298 | 
 
  3-(trimethylsilyl)propyn-1-ylium-Co2(CO)6 |  | E Parameter: -1.60
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  3-(4-methoxybenzylidene)-1-methyl-3H-indol-1-ium iom | 0 | E Parameter: -3.02
  |     | J. Org. Chem. 2015, 80, 8643-8656 DOI: 10.1021/acs.joc.5b01298 | 
 
  3-(4-(dimethylamino)benzylidene)-1-methyl-3H-indol-1-ium ion | 0 | E Parameter: -6.26
  |     | J. Org. Chem. 2015, 80, 8643-8656 DOI: 10.1021/acs.joc.5b01298 | 
 
  3,6-dinitro-1-tosyl-1H-indole | 0 | E Parameter: -12.90
  |     | Chem. Commun. 2021, 57, 10071-10074 DOI: 10.1039/d1cc04074j | 
 
  2-phenylethene-1-sulfonyl fluoride | DMSO | E Parameter: -16.63
  |     | Angew. Chem. Int. Ed. 2016, 55, 12664-12667 DOI: 10.1002/anie.201601875 | 
 
  2-phenyl-1,3-dithiolan-2-ylium ion | 0 | E Parameter: -5.91
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  2-phenyl-1,3-dithianylium ion | 0 | E Parameter: -6.43
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  2-methylcyclopentenone | DMSO | E Parameter: -22.10
  |     | Chem. Sci. 2021, 12, 4850-4865 DOI: 10.1039/D0SC06628A | 
 
  2-methylcyclohexenone | DMSO | E Parameter: -27.50
  |   | Chem. Sci. 2021, 12, 4850-4865 DOI: 10.1039/D0SC06628A | 
 
  2-cinnamoyl-3-methyl-1-(perfluorophenyl)-1H-imidazol-3-ium | DMSO | E Parameter: -10.09
  |     | Top. Catal. 2018, 61, 585-590 DOI: 10.1007/s11244-018-0914-5 | 
 
  2-cinnamoyl-1-mesityl-3-methyl-1H-imidazol-3-ium | DMSO | E Parameter: -11.48
  |     | Top. Catal. 2018, 61, 585-590 DOI: 10.1007/s11244-018-0914-5 | 
 
  2-cinnamoyl-1-(4-methoxyphenyl)-3-methyl-1H-imidazol-3-ium | DMSO | E Parameter: -11.79
  |     | Top. Catal. 2018, 61, 585-590 DOI: 10.1007/s11244-018-0914-5 | 
 
  2-cinnamoyl-1-(2,6-dimethoxyphenyl)-3-methyl-1H-imidazol-3-ium | DMSO | E Parameter: -12.02
  |     | Top. Catal. 2018, 61, 585-590 DOI: 10.1007/s11244-018-0914-5 | 
 
  2-cinnamoyl-1,3-dimethyl-1H-imidazol-3-ium | DMSO | E Parameter: -11.52
  |     | Angew. Chem. Int. Ed. 2012, 51, 5234-5238 DOI: 10.1002/anie.201109042 | 
 
  2-benzylidenebenzo[d][1,3]dithiole 1,1,3,3-tetraoxide | DMSO | E Parameter: -11.78
  |     | Chem. Asian J. 2012, 7, 1401-1407 DOI: 10.1002/asia.201101046 | 
 
  2-benzylidene-indan-1,3-dione | 0 | E Parameter: -10.11
  |     | Org. Biomol. Chem. 2007, 5, 3020-3026 DOI: 10.1039/b708025e | 
 
  2-(p-methoxybenzylidene)-indan-1,3-dione | 0 | E Parameter: -11.32
  |     | Org. Biomol. Chem. 2007, 5, 3020-3026 DOI: 10.1039/b708025e | 
 
  2-(p-(dimethylamino)benzylidene)-indan-1,3-dione | 0 | E Parameter: -13.56
  |     | Org. Biomol. Chem. 2007, 5, 3020-3026 DOI: 10.1039/b708025e | 
 
  2-(4-methoxyphenyl)chromenylium ion | 0 | E Parameter: -4.95
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  2-(4-methoxybenzylidene)benzo[d][1,3]dithiole 1,1,3,3-tetraoxide | DMSO | E Parameter: -13.02
  |     | Chem. Asian J. 2012, 7, 1401-1407 DOI: 10.1002/asia.201101046 | 
 
  2-(4-methoxybenzylidene)-1,3-dithiane 1,1,3,3-tetraoxide | DMSO | E Parameter: -14.55
  |     | Chem. Asian J. 2012, 7, 1401-1407 DOI: 10.1002/asia.201101046 | 
 
  2-(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dien-1-ylidene)acetonitrile | 0 | E Parameter: -11.88
  |     | Chem. Eur. J. 2025, 31, e202501224 DOI: 10.1002/chem.202501224 | 
 
  2,6-diphenyl-4-benzylidenecyclohexa-2,5-dienone | 0 | E Parameter: -11.87
  |     | Eur. J. Org. Chem. 2009, , 3203-3211 DOI: 10.1002/ejoc.200900299 | 
 
  2,6-dimethyl-4-(4-(dimethylamino)benzylidene)cyclohexa-2,5-dienone | 0 | E Parameter: -16.36
  |     | Eur. J. Org. Chem. 2009, , 3203-3211 DOI: 10.1002/ejoc.200900299 | 
 
  2,6-dimethoxy-4-(4-methoxybenzylidene)cyclohexa-2,5-dienone | 0 | E Parameter: -16.38
  |     | Eur. J. Org. Chem. 2009, , 3203-3211 DOI: 10.1002/ejoc.200900299 | 
 
  2,6-dimethoxy-4-(4-(dimethylamino)benzylidene)cyclohexa-2,5-dienone | 0 | E Parameter: -17.18
  |     | Eur. J. Org. Chem. 2009, , 3203-3211 DOI: 10.1002/ejoc.200900299 | 
 
  2,6-di-tert.butyl-4-(4-nitrobenzylidene)cyclohexa-2,5-dienone | 0 | E Parameter: -14.36
  |     | Eur. J. Org. Chem. 2009, , 3203-3211 DOI: 10.1002/ejoc.200900299 | 
 
  2,6-di-tert.butyl-4-(3-fluorobenzylidene)cyclohexa-2,5-dienone | 0 | E Parameter: -15.03
  |     | Eur. J. Org. Chem. 2009, , 3203-3211 DOI: 10.1002/ejoc.200900299 | 
 
  2,6-di-tert.butyl-4-(3,5-difluorobenzylidene)cyclohexa-2,5-dienone | 0 | E Parameter: -14.50
  |     | Eur. J. Org. Chem. 2009, , 3203-3211 DOI: 10.1002/ejoc.200900299 | 
 
  2,6-di-tert-butyl-4-methylenecyclohexa-2,5-dien-1-one | 0 | E Parameter: -11.17
  |     | Chem. Eur. J. 2025, 31, e202501224 DOI: 10.1002/chem.202501224 | 
 
  2,6-di-tert-butyl-4-ethylidenecyclohexa-2,5-dien-1-one | 0 | E Parameter: -13.68
  |     | Chem. Eur. J. 2025, 31, e202501224 DOI: 10.1002/chem.202501224 | 
 
  2,6-di-tert-butyl-4-(methoxymethylene)cyclohexa-2,5-dien-1-one | 0 | E Parameter: -15.10
  |     | Chem. Eur. J. 2025, 31, e202501224 DOI: 10.1002/chem.202501224 | 
 
  2,6-di-tert-butyl-4-(2,2,2-trifluoroethylidene)cyclohexa-2,5-dien-1-one | DMSO | E Parameter: -11.68
  |     | Eur. J. Org. Chem. 2020, , 3812-3817 DOI: 10.1002/ejoc.202000295 | 
 
  2,5-dichloroquinone (C-H) | 0 | E Parameter: -12.28
  |     | J. Am. Chem. Soc. 2014, 136, 11499-11512 DOI: 10.1021/ja505613b | 
 
  2,5-dichloroquinone (C-Cl) | 0 | E Parameter: -16.11
  |     | J. Am. Chem. Soc. 2014, 136, 11499-11512 DOI: 10.1021/ja505613b | 
 
  2,4-dinitrothiophene | 0 | E Parameter: -12.33
  |     | J. Org. Chem. 2005, 70, 6242-6253 DOI: 10.1021/jo0505526 | 
 
  1-phenylprop-2-en-1-one (in DMSO) | DMSO | E Parameter: -15.25
  |     | J. Am. Chem. Soc. 2017, 139, 13318-13329 DOI: 10.1021/jacs.7b05106 | 
 
  1-phenylcyclopent-2-enylium ion | 0 | E Parameter: 2.89
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  1-phenyl-proyn-ylium-Co2(CO)6 |  | E Parameter: -0.97
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  1-phenyl-propyn-1-ylium-Co2(CO)5(PPh3) |  | E Parameter: -6.19
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  1-methylsulfanylpropan-2-one (in DMSO) | DMSO | E Parameter: -15.60
  |   | J. Am. Chem. Soc. 2018, 140, 5500-5515 DOI: 10.1021/jacs.8b01657 | 
 
  1-methylpiperidin-4-one (in DMSO) | DMSO | E Parameter: -18.40
  |   | J. Am. Chem. Soc. 2018, 140, 5500-5515 DOI: 10.1021/jacs.8b01657 | 
 
  1-methyl-3-(4-methylbenzylidene)-3H-indol-1-ium ion | 0 | E Parameter: -2.19
  |     | J. Org. Chem. 2015, 80, 8643-8656 DOI: 10.1021/acs.joc.5b01298 | 
 
  1-methyl-3-((julolidin-9-yl)methylene)-3H-indol-1-ium ion | 0 | E Parameter: -7.79
  |     | J. Org. Chem. 2015, 80, 8643-8656 DOI: 10.1021/acs.joc.5b01298 | 
 
  1-(tert-butyl)-2-cinnamoyl-3-methyl-1H-imidazol-3-ium | DMSO | E Parameter: -11.80
  |     | Top. Catal. 2018, 61, 585-590 DOI: 10.1007/s11244-018-0914-5 | 
 
  1-(4-chlorophenyl)cyclopent-2-enylium ion | 0 | E Parameter: 3.20
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  1,4-dioxaspiro[4.5]decan-8-one (in DMSO) | DMSO | E Parameter: -18.20
  |   | J. Am. Chem. Soc. 2018, 140, 5500-5515 DOI: 10.1021/jacs.8b01657 | 
 
  1,3-dithianylium ion | 0 | E Parameter: -2.14
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  1,3-diphenylpropyn-1-ylium-Cr(CO)3 |  | E Parameter: 1.07
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  1,3-bis(2,4,6-trimethylphenyl)but-1-ylium ion | 0 | E Parameter: 6.16
  |   | Macromolecules 2005, 38, 33-40 DOI: 10.1021/ma048389o | 
 
  1,3,5-trinitrobenzene | 0 | E Parameter: -13.19
  |     | J. Org. Chem. 2005, 70, 6242-6253 DOI: 10.1021/jo0505526 | 
 
  1,2-diaza-1,3-diene 1f | MeOH | E Parameter: -15.30
  |   | Chem. Eur. J. 2010, 16, 12008-12016 DOI: 10.1002/chem.201000828 | 
 
  1,2-diaza-1,3-diene 1e | MeOH | E Parameter: -14.90
  |   | Chem. Eur. J. 2010, 16, 12008-12016 DOI: 10.1002/chem.201000828 | 
 
  1,2-diaza-1,3-diene 1d | DMSO | E Parameter: -15.38
  |     | Chem. Eur. J. 2010, 16, 12008-12016 DOI: 10.1002/chem.201000828 | 
 
  1,2-diaza-1,3-diene 1c | DMSO | E Parameter: -14.91
  |     | Chem. Eur. J. 2010, 16, 12008-12016 DOI: 10.1002/chem.201000828 | 
 
  1,2-diaza-1,3-diene 1b | DMSO | E Parameter: -13.90
  |     | Chem. Eur. J. 2010, 16, 12008-12016 DOI: 10.1002/chem.201000828 | 
 
  1,2-diaza-1,3-diene 1a | DMSO | E Parameter: -13.28
  |     | Chem. Eur. J. 2010, 16, 12008-12016 DOI: 10.1002/chem.201000828 | 
 
  1,1-dianisyl-3-phenylallylium ion | 0 | E Parameter: -2.67
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  1,1-bis(4-dimethylaminophenyl)-3-phenylallylium ion | 0 | E Parameter: -8.97
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  1,1,3-tris(4-(dimethylamino)phenyl)allylium ion | 0 | E Parameter: -9.84
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  1,1,3-triphenylpropyn-1-ylium-Cr(CO)3 |  | E Parameter: -0.25
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  1,1,3-triphenylallylium ion | 0 | E Parameter: 0.98
  |     | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c | 
 
  (tol)2CH+ | 0 | E Parameter: 3.63
  |       | J. Am. Chem. Soc. 2001, 123, 9500-9512 DOI: 10.1021/ja010890y | 
 
  (thq)2CH+ | 0 | E Parameter: -8.22
  |       | J. Am. Chem. Soc. 2001, 123, 9500-9512 DOI: 10.1021/ja010890y | 
 
  (tfm)PhCH+ | 0 | E Parameter: 6.70
  |       | J. Am. Chem. Soc. 2012, 134, 13902-13911 DOI: 10.1021/ja306522b | 
 
  (tfm)2CH+ | 0 | E Parameter: 7.96
  |    | J. Am. Chem. Soc. 2012, 134, 13902-13911 DOI: 10.1021/ja306522b | 
 
  (S,E)-5-benzyl-2,2,3-trimethyl-4-oxo-1-((E)-3-(p-tolyl)allylidene)imidazolidin-1-ium | dichloromethane | E Parameter: -7.20
  |    | Asian J. Org. Chem. 2014, 3, 550-555 DOI: 10.1002/ajoc.201402009 | 
 
  (S,E)-5-benzyl-2,2,3-trimethyl-1-((E)-3-(4-nitrophenyl)allylidene)-4-oxoimidazolidin-1-ium | dichloromethane | E Parameter: -5.90
  |    | Asian J. Org. Chem. 2014, 3, 550-555 DOI: 10.1002/ajoc.201402009 | 
 
  (S,E)-5-benzyl-2,2,3-trimethyl-1-((E)-3-(3-nitrophenyl)allylidene)-4-oxoimidazolidin-1-ium | dichloromethane | E Parameter: -6.10
  |    | Asian J. Org. Chem. 2014, 3, 550-555 DOI: 10.1002/ajoc.201402009 | 
 
  (S,E)-5-benzyl-1-((E)-3-(4-methoxyphenyl)allylidene)-2,2,3-trimethyl-4-oxoimidazolidin-1-ium | dichloromethane | E Parameter: -8.00
  |    | Asian J. Org. Chem. 2014, 3, 550-555 DOI: 10.1002/ajoc.201402009 | 
 
  (S,E)-5-benzyl-1-((E)-3-(4-cyanophenyl)allylidene)-2,2,3-trimethyl-4-oxoimidazolidin-1-ium | dichloromethane | E Parameter: -6.00
  |    | Asian J. Org. Chem. 2014, 3, 550-555 DOI: 10.1002/ajoc.201402009 | 
 
  (S,E)-5-benzyl-1-((E)-3-(4-(dimethylamino)phenyl)allylidene)-2,2,3-trimethyl-4-oxoimidazolidin-1-ium | dichloromethane | E Parameter: -10.60
  |    | Asian J. Org. Chem. 2014, 3, 550-555 DOI: 10.1002/ajoc.201402009 | 
 
  (S,E)-5-((1H-indol-3-yl)methyl)-2,2,3-trimethyl-4-oxo-1-((E)-3-phenylallylidene)imidazolidin-1-ium | dichloromethane | E Parameter: -7.30
  |    | Asian J. Org. Chem. 2014, 3, 550-555 DOI: 10.1002/ajoc.201402009 | 
 
  (S,E)-2,2,3-trimethyl-4-oxo-5-((perfluorophenyl)methyl)-1-((E)-3-phenylallylidene)imidazolidin-1-ium | dichloromethane | E Parameter: -6.00
  |    | Angew. Chem. Int. Ed. 2013, 52, 7967-7971 DOI: 10.1002/anie.201301864 | 
 
  (S,E)-2,2,3-trimethyl-4-oxo-1-((E)-3-phenylallylidene)-5-(3,4,5-trimethoxybenzyl)imidazolidin-1-ium | dichloromethane | E Parameter: -7.00
  |    | Angew. Chem. Int. Ed. 2013, 52, 7967-7971 DOI: 10.1002/anie.201301864 | 
 
  (pyr)2CH+ | 0 | E Parameter: -7.69
  |       | J. Am. Chem. Soc. 2001, 123, 9500-9512 DOI: 10.1021/ja010890y | 
 
  (PhCH2)2N+=CH-CH-Ph | 0 | E Parameter: -8.50
  |     | Angew. Chem. Int. Ed. 2008, 47, 8723-8726 DOI: 10.1002/anie.200802889 | 
 
  (pfp)2CH+ | 0 | E Parameter: 5.01
  |       | J. Am. Chem. Soc. 2012, 134, 13902-13911 DOI: 10.1021/ja306522b | 
 
  (pfa)2CH+ | 0 | E Parameter: -3.14
  |       | J. Am. Chem. Soc. 2001, 123, 9500-9512 DOI: 10.1021/ja010890y | 
 
  (pcp)2CH+ | 0 | E Parameter: 5.48
  |       | J. Am. Chem. Soc. 2012, 134, 13902-13911 DOI: 10.1021/ja306522b | 
 
  (mpa)2CH+ | 0 | E Parameter: -5.89
  |       | J. Am. Chem. Soc. 2001, 123, 9500-9512 DOI: 10.1021/ja010890y | 
 
  (mor)2CH+ | 0 | E Parameter: -5.53
  |       | J. Am. Chem. Soc. 2001, 123, 9500-9512 DOI: 10.1021/ja010890y | 
 
  (mfp)PhCH+ | 0 | E Parameter: 6.23
  |       | J. Am. Chem. Soc. 2012, 134, 13902-13911 DOI: 10.1021/ja306522b | 
 
  (mfp)2CH+ | 0 | E Parameter: 6.87
  |       | J. Am. Chem. Soc. 2012, 134, 13902-13911 DOI: 10.1021/ja306522b | 
 
  (mfa)2CH+ | 0 | E Parameter: -3.85
  |       | J. Am. Chem. Soc. 2001, 123, 9500-9512 DOI: 10.1021/ja010890y | 
 
  (lil)2CH+ | 0 | E Parameter: -10.04
  |       | J. Am. Chem. Soc. 2001, 123, 9500-9512 DOI: 10.1021/ja010890y | 
 
  (jul)2CH+ | 0 | E Parameter: -9.45
  |       | J. Am. Chem. Soc. 2001, 123, 9500-9512 DOI: 10.1021/ja010890y | 
 
  (ind)2CH+ | 0 | E Parameter: -8.76
  |       | J. Am. Chem. Soc. 2001, 123, 9500-9512 DOI: 10.1021/ja010890y | 
 
  (fur)2CH+ | 0 | E Parameter: -1.36
  |       | J. Am. Chem. Soc. 2001, 123, 9500-9512 DOI: 10.1021/ja010890y | 
 
  (fur)(ani)CH+ | 0 | E Parameter: -0.81
  |       | J. Am. Chem. Soc. 2012, 134, 13902-13911 DOI: 10.1021/ja306522b | 
 
  (Ftol)2CH+ | 0 | E Parameter: 5.24
  |       | J. Am. Chem. Soc. 2012, 134, 13902-13911 DOI: 10.1021/ja306522b | 
 
  (ethene-1,1-diyldisulfonyl)dibenzene | DMSO | E Parameter: -7.50
  |     | Chem. Asian J. 2012, 7, 1401-1407 DOI: 10.1002/asia.201101046 | 
 
  (E)-tert-butyl benzylidenecarbamate (in DMSO) | DMSO | E Parameter: -14.22
  |     | J. Am. Chem. Soc. 2011, 133, 8240-8251 DOI: 10.1021/ja200820m | 
 
  (E)-N-benzylidene-P,P-diphenylphosphinic amide | DMSO | E Parameter: -15.89
  |     | J. Am. Chem. Soc. 2011, 133, 8240-8251 DOI: 10.1021/ja200820m | 
 
  (E)-N-benzylidene-4-methylbenzenesulfonamide (in DMSO) | DMSO | E Parameter: -11.50
  |     | J. Am. Chem. Soc. 2011, 133, 8240-8251 DOI: 10.1021/ja200820m | 
 
  (E)-N-(4-methoxybenzylidene)-4-methylbenzenesulfonamide (in DMSO) | DMSO | E Parameter: -13.05
  |     | J. Am. Chem. Soc. 2011, 133, 8240-8251 DOI: 10.1021/ja200820m | 
 
  (E)-N-(4-(dimethylamino)benzylidene)-4-methylbenzenesulfonamide (in DMSO) | DMSO | E Parameter: -15.09
  |     | J. Am. Chem. Soc. 2011, 133, 8240-8251 DOI: 10.1021/ja200820m | 
 
  (E)-6-benzylidenebenzo[d][1,3]dioxol-5(6H)-one | 0 | E Parameter: -14.47
  |     | Chem. Eur. J. 2025, 31, e202403785 DOI: 10.1002/chem.202403785 | 
 
  (E)-6-(furan-2-ylmethylene)benzo[d][1,3]dioxol-5(6H)-one | 0 | E Parameter: -15.73
  |     | Org. Biomol. Chem. 2025, 23, 827-834 DOI: 10.1039/D4OB01855A | 
 
  (E)-6-(4-nitrobenzylidene)benzo[d][1,3]dioxol-5(6H)-one | 0 | E Parameter: -13.15
  |     | Chem. Eur. J. 2025, 31, e202403785 DOI: 10.1002/chem.202403785 | 
 
  (E)-6-(4-methylbenzylidene)benzo[d][1,3]dioxol-5(6H)-one | 0 | E Parameter: -14.85
  |     | Chem. Eur. J. 2025, 31, e202403785 DOI: 10.1002/chem.202403785 | 
 
  (E)-6-(4-methoxybenzylidene)benzo[d][1,3]dioxol-5(6H)-one | 0 | E Parameter: -15.20
  |     | Chem. Eur. J. 2025, 31, e202403785 DOI: 10.1002/chem.202403785 | 
 
  (E)-6-(4-chlorobenzylidene)benzo[d][1,3]dioxol-5(6H)-one | 0 | E Parameter: -13.99
  |     | Chem. Eur. J. 2025, 31, e202403785 DOI: 10.1002/chem.202403785 | 
 
  (E)-6-(4-(trifluoromethyl)benzylidene)benzo[d][1,3]dioxol-5(6H)-one | 0 | E Parameter: -13.54
  |     | Chem. Eur. J. 2025, 31, e202403785 DOI: 10.1002/chem.202403785 | 
 
  (E)-6-(4-(dimethylamino)benzylidene)benzo[d][1,3]dioxol-5(6H)-one | 0 | E Parameter: -16.07
  |     | Chem. Eur. J. 2025, 31, e202403785 DOI: 10.1002/chem.202403785 | 
 
  (E)-6-(3-fluorobenzylidene)benzo[d][1,3]dioxol-5(6H)-one | 0 | E Parameter: -14.00
  |     | Chem. Eur. J. 2025, 31, e202403785 DOI: 10.1002/chem.202403785 | 
 
  (E)-6-((E)-3-phenylallylidene)benzo[d][1,3]dioxol-5(6H)-one | 0 | E Parameter: -16.00
  |     | Org. Biomol. Chem. 2025, 23, 827-834 DOI: 10.1039/D4OB01855A | 
 
  (E)-6-((1-methyl-1H-pyrrol-2-yl)methylene)benzo[d][1,3]dioxol-5(6H)-one | 0 | E Parameter: -17.03
  |     | Org. Biomol. Chem. 2025, 23, 827-834 DOI: 10.1039/D4OB01855A | 
 
  (E)-6-((1-methyl-1H-indol-2-yl)methylene)benzo[d][1,3]dioxol-5(6H)-one | 0 | E Parameter: -15.55
  |     | Org. Biomol. Chem. 2025, 23, 827-834 DOI: 10.1039/D4OB01855A | 
 
  (E)-4-phenylbut-3-en-2-one (in DMSO) | DMSO | E Parameter: -23.01
  |     | J. Am. Chem. Soc. 2017, 139, 13318-13329 DOI: 10.1021/jacs.7b05106 | 
 
  (E)-4-methyl-1-(4-nitrophenyl)pent-1-en-3-one (in DMSO) | DMSO | E Parameter: -19.17
  |   | J. Am. Chem. Soc. 2011, 133, 8240-8251 DOI: 10.1021/ja200820m | 
 
  (E)-4-(4-nitrophenyl)but-3-en-2-one (in DSMO) | DMSO | E Parameter: -19.36
  |   | J. Am. Chem. Soc. 2011, 133, 8240-8251 DOI: 10.1021/ja200820m | 
 
  (E)-4,4-dimethyl-1-(4-nitrophenyl)pent-1-en-3-one | DMSO | E Parameter: -19.15
  |   | J. Am. Chem. Soc. 2011, 133, 8240-8251 DOI: 10.1021/ja200820m | 
 
  (E)-3-benzylidene-1,2-dimethyl-3H-indol-1-ium ion | 0 | E Parameter: -4.96
  |    | J. Org. Chem. 2015, 80, 8643-8656 DOI: 10.1021/acs.joc.5b01298 | 
 
  (E)-3-(4-nitro-phenyl)-1-phenyl-prop-2-en-1-one (in DMSO) | DMSO | E Parameter: -17.33
  |     | J. Am. Chem. Soc. 2011, 133, 8240-8251 DOI: 10.1021/ja200820m | 
 
  (E)-3-(4-cyano-phenyl)-1-phenyl-prop-2-en-1-one (in DMSO) | DMSO | E Parameter: -17.64
  |     | J. Am. Chem. Soc. 2011, 133, 8240-8251 DOI: 10.1021/ja200820m | 
 
  (E)-2-methyl-3-(4-methylbenzylidene)-3H-indol-1-ium ion | 0 | E Parameter: -5.15
  |     | J. Org. Chem. 2015, 80, 8643-8656 DOI: 10.1021/acs.joc.5b01298 | 
 
  (E)-2-(tert-butyl)-3-(4-methylbenzylidene)-3H-indol-1-ium | dichloromethane | E Parameter: -5.06
  |   | Eur. J. Org. Chem. 2016, , 4050-4058 DOI: 10.1002/ejoc.201600572 | 
 
  (E)-2,6-di-tert-butyl-4-(3-phenylallylidene)cyclohexa-2,5-dien-1-one | DMSO | E Parameter: -17.00
  |     | Org. Lett. 2020, 22, 2182-2186 DOI: 10.1021/acs.orglett.0c00338 | 
 
  (E)-2,6-di-tert-butyl-4-(3-(4-nitrophenyl)allylidene)cyclohexa-2,5-dien-1-one | DMSO | E Parameter: -16.25
  |     | Org. Lett. 2020, 22, 2182-2186 DOI: 10.1021/acs.orglett.0c00338 | 
 
  (E)-2,6-di-tert-butyl-4-(3-(4-methoxyphenyl)allylidene)cyclohexa-2,5-dien-1-one | DMSO | E Parameter: -17.42
  |     | Org. Lett. 2020, 22, 2182-2186 DOI: 10.1021/acs.orglett.0c00338 | 
 
  (E)-1-methyl-4-(styrylsulfonyl)benzene (in DMSO) | DMSO | E Parameter: -24.69
  |    | J. Am. Chem. Soc. 2017, 139, 13318-13329 DOI: 10.1021/jacs.7b05106 | 
 
  (E)-1,3-diphenylprop-2-en-1-one (in DMSO) | DMSO | E Parameter: -19.39
  |     | J. Am. Chem. Soc. 2017, 139, 13318-13329 DOI: 10.1021/jacs.7b05106 | 
 
  (E)-1,2-dimethyl-3-(4-methylbenzylidene)-3H-indol-1-ium ion | 0 | E Parameter: -5.05
  |     | J. Org. Chem. 2015, 80, 8643-8656 DOI: 10.1021/acs.joc.5b01298 | 
 
  (dpa)2CH+ | 0 | E Parameter: -4.72
  |       | J. Am. Chem. Soc. 2001, 123, 9500-9512 DOI: 10.1021/ja010890y | 
 
  (dma)2CH+ | 0 | E Parameter: -7.02
  |       | J. Am. Chem. Soc. 2001, 123, 9500-9512 DOI: 10.1021/ja010890y | 
 
  (dfp)PhCH+ | 0 | E Parameter: 6.74
  |       | J. Am. Chem. Soc. 2012, 134, 13902-13911 DOI: 10.1021/ja306522b | 
 
  (dfp)2CH+ | 0 | E Parameter: 8.02
  |   | J. Am. Chem. Soc. 2012, 134, 13902-13911 DOI: 10.1021/ja306522b | 
 
  (dfp)(mfp)CH+ | 0 | E Parameter: 7.52
  |       | J. Am. Chem. Soc. 2012, 134, 13902-13911 DOI: 10.1021/ja306522b | 
 
  (ani)2CH+ | 0 | E Parameter: 0.00
  |       | J. Am. Chem. Soc. 2001, 123, 9500-9512 DOI: 10.1021/ja010890y | 
 
  (4-OMe,3-Me)-tritylium ion |  | E Parameter: -1.84
  |   | J. Am. Chem. Soc. 2003, 125, 286-295 DOI: 10.1021/ja021010y | 
 
  (4-NMe2)3-tritylium ion (= Crystal violet) |  | E Parameter: -11.26
  |   | J. Am. Chem. Soc. 2003, 125, 286-295 DOI: 10.1021/ja021010y | 
 
  (4-NMe2)2-tritylium ion (= Malachite green) |  | E Parameter: -10.29
  |   | J. Am. Chem. Soc. 2003, 125, 286-295 DOI: 10.1021/ja021010y | 
 
  (4-NMe2)-tritylium ion |  | E Parameter: -7.93
  |   | J. Am. Chem. Soc. 2003, 125, 286-295 DOI: 10.1021/ja021010y | 
 
  (4-MeO,4-Me)-tritylium ion |  | E Parameter: -2.13
  |   | J. Am. Chem. Soc. 2003, 125, 286-295 DOI: 10.1021/ja021010y | 
 
  (4-MeO,3-OMe)-tritylium ion |  | E Parameter: -1.62
  |   | J. Am. Chem. Soc. 2003, 125, 286-295 DOI: 10.1021/ja021010y | 
 
  (4-MeO)3-tritylium ion |  | E Parameter: -4.35
  |   | J. Am. Chem. Soc. 2003, 125, 286-295 DOI: 10.1021/ja021010y | 
 
  (4-MeO)2-tritylium ion |  | E Parameter: -3.04
  |   | J. Am. Chem. Soc. 2003, 125, 286-295 DOI: 10.1021/ja021010y | 
 
  (4-MeO)-tritylium ion |  | E Parameter: -1.59
  |   | Eur. J. Org. Chem. 2011, , 6470-6475 DOI: 10.1002/ejoc.201100910 | 
 
  (4-Me)3-tritylium ion |  | E Parameter: -1.21
  |   | J. Am. Chem. Soc. 2003, 125, 286-295 DOI: 10.1021/ja021010y | 
 
  (4-Me)2-tritylium ion |  | E Parameter: -0.70
  |   | J. Am. Chem. Soc. 2003, 125, 286-295 DOI: 10.1021/ja021010y | 
 
  (4-Me)-tritylium ion |  | E Parameter: -0.13
  |   | J. Am. Chem. Soc. 2003, 125, 286-295 DOI: 10.1021/ja021010y | 
 
  (4-F)3-tritylium ion |  | E Parameter: 0.05
  |   | Eur. J. Org. Chem. 2011, , 6470-6475 DOI: 10.1002/ejoc.201100910 | 
 
  (4-F)2-tritylium ion |  | E Parameter: 0.17
  |   | Eur. J. Org. Chem. 2011, , 6470-6475 DOI: 10.1002/ejoc.201100910 | 
 
  (4-F)-tritylium ion |  | E Parameter: 0.35
  |   | Eur. J. Org. Chem. 2011, , 6470-6475 DOI: 10.1002/ejoc.201100910 | 
 
  (4-CF3)2-tritylium ion |  | E Parameter: 2.28
  |   | J. Am. Chem. Soc. 2003, 125, 286-295 DOI: 10.1021/ja021010y | 
 
  (4-CF3)-tritylium ion |  | E Parameter: 1.33
  |   | J. Am. Chem. Soc. 2003, 125, 286-295 DOI: 10.1021/ja021010y | 
 
  (3-F)4-tritylium ion |  | E Parameter: 2.54
  |   | Eur. J. Org. Chem. 2011, , 6470-6475 DOI: 10.1002/ejoc.201100910 | 
 
  (3-F)3-tritylium ion |  | E Parameter: 2.07
  |   | Eur. J. Org. Chem. 2011, , 6470-6475 DOI: 10.1002/ejoc.201100910 | 
 
  (3-F)2-tritylium ion |  | E Parameter: 1.54
  |   | Eur. J. Org. Chem. 2011, , 6470-6475 DOI: 10.1002/ejoc.201100910 | 
 
  (3-F)-tritylium ion |  | E Parameter: 1.01
  |   | Eur. J. Org. Chem. 2011, , 6470-6475 DOI: 10.1002/ejoc.201100910 | 
 
  (3-Cl)3-tritylium ion |  | E Parameter: 1.99
  |   | J. Am. Chem. Soc. 2003, 125, 286-295 DOI: 10.1021/ja021010y | 
 
  (3-Cl)-tritylium ion |  | E Parameter: 1.06
  |   | J. Am. Chem. Soc. 2003, 125, 286-295 DOI: 10.1021/ja021010y | 
 
  (3-CF3)-tritylium ion |  | E Parameter: 1.18
  |   | J. Am. Chem. Soc. 2003, 125, 286-295 DOI: 10.1021/ja021010y | 
 
  (2S,5S)-5-benzyl-3-methyl-4-oxo-1-(3-phenylallylidene)-2-((E)-styryl)imidazolidin-1-ium | dichloromethane | E Parameter: -5.90
  |    | Asian J. Org. Chem. 2014, 3, 550-555 DOI: 10.1002/ajoc.201402009 | 
 
  (2-phenylethene-1,1-diyldisulfonyl)dibenzene | DMSO | E Parameter: -12.93
  |     | Chem. Asian J. 2012, 7, 1401-1407 DOI: 10.1002/asia.201101046 | 
 
  (2-(4-methoxyphenyl)ethene-1,1-diyldisulfonyl)dibenzene | DMSO | E Parameter: -13.88
  |     | Chem. Asian J. 2012, 7, 1401-1407 DOI: 10.1002/asia.201101046 | 
 
  (2,4,6-trimethylphenyl)ethylium ion | 0 | E Parameter: 6.04
  |   | Macromolecules 2005, 38, 33-40 DOI: 10.1021/ma048389o | 
 
   2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) | MeCN | E Parameter: -3.66
  |     | J. Am. Chem. Soc. 2013, 135, 12377-12387 DOI: 10.1021/ja405890d |