Acceptor-Substituted Ethylenes

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Name	Solvent	Reactivity Parameters	Reference (title or year)
(ethene-1,1-diyldisulfonyl)dibenzene	DMSO	E Param.: -7.50	Chem. Asian J. 2012, 7, 1401-1407 10.1002/asia.201101046
ani(Br)2QM		E Param.: -8.63	Angew. Chem. Int. Ed. 2002, 41, 91-95 10.1002/1521-3773(20[...]
benzylidene-Meldrum's acid		E Param.: -9.15	J. Org. Chem. 2008, 73, 2738-2745 10.1021/jo702590s
benzylidenemalononitrile		E Param.: -9.42	J. Org. Chem. 2003, 68, 6880-6886 10.1021/jo0344182
2-cinnamoyl-3-methyl-1-(perfluorophenyl)-1H-imidazol-3-ium	DMSO	E Param.: -10.09	Top. Catal. 2018, 61, 585-590 10.1007/s11244-018-0[...]
2-benzylidene-indan-1,3-dione		E Param.: -10.11	Org. Biomol. Chem. 2007, 5, 3020-3026 10.1039/b708025e
p-(methoxy)benzylidene Meldrum's acid		E Param.: -10.28	J. Org. Chem. 2008, 73, 2738-2745 10.1021/jo702590s
aniBBS		E Param.: -10.37	J. Org. Chem. 2007, 72, 9170-9180 10.1021/jo071273g
dma(S)BBS		E Param.: -10.73	J. Org. Chem. 2007, 72, 9170-9180 10.1021/jo071273g
p-(methoxy)benzylidenemalononitrile		E Param.: -10.80	J. Org. Chem. 2003, 68, 6880-6886 10.1021/jo0344182
2,6-di-tert-butyl-4-methylenecyclohexa-2,5-dien-1-one		E Param.: -11.17	Chem. Eur. J. 2025, 31, e202501224 10.1002/chem.202501224
maleic anhydride	DMSO	E Param.: -11.31	Eur. J. Org. Chem. 2014, , 2956-2963 10.1002/ejoc.201301779
2-(p-methoxybenzylidene)-indan-1,3-dione		E Param.: -11.32	Org. Biomol. Chem. 2007, 5, 3020-3026 10.1039/b708025e
2-cinnamoyl-1-mesityl-3-methyl-1H-imidazol-3-ium	DMSO	E Param.: -11.48	Top. Catal. 2018, 61, 585-590 10.1007/s11244-018-0[...]
2-cinnamoyl-1,3-dimethyl-1H-imidazol-3-ium	DMSO	E Param.: -11.52	Angew. Chem. Int. Ed. 2012, 51, 5234-5238 10.1002/anie.201109042
2,6-di-tert-butyl-4-(2,2,2-trifluoroethylidene)cyclohexa-2,5-dien-1-one	DMSO	E Param.: -11.68	Eur. J. Org. Chem. 2020, , 3812-3817 10.1002/ejoc.202000295
2-benzylidenebenzo[d][1,3]dithiole 1,1,3,3-tetraoxide	DMSO	E Param.: -11.78	Chem. Asian J. 2012, 7, 1401-1407 10.1002/asia.201101046
2-cinnamoyl-1-(4-methoxyphenyl)-3-methyl-1H-imidazol-3-ium	DMSO	E Param.: -11.79	Top. Catal. 2018, 61, 585-590 10.1007/s11244-018-0[...]
1-(tert-butyl)-2-cinnamoyl-3-methyl-1H-imidazol-3-ium	DMSO	E Param.: -11.80	Top. Catal. 2018, 61, 585-590 10.1007/s11244-018-0[...]
2,6-diphenyl-4-benzylidenecyclohexa-2,5-dienone		E Param.: -11.87	Eur. J. Org. Chem. 2009, , 3203-3211 10.1002/ejoc.200900299
2-(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dien-1-ylidene)acetonitrile		E Param.: -11.88	Chem. Eur. J. 2025, 31, e202501224 10.1002/chem.202501224
jul(S)BBS		E Param.: -11.89	J. Org. Chem. 2007, 72, 9170-9180 10.1021/jo071273g
ethyl 2-(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dien-1-ylidene)acetate		E Param.: -12.01	Chem. Eur. J. 2025, 31, e202501224 10.1002/chem.202501224
2-cinnamoyl-1-(2,6-dimethoxyphenyl)-3-methyl-1H-imidazol-3-ium	DMSO	E Param.: -12.02	Top. Catal. 2018, 61, 585-590 10.1007/s11244-018-0[...]
ethenesulfonyl fluoride (ESF)	DMSO	E Param.: -12.09	Angew. Chem. Int. Ed. 2016, 55, 12664-12667 10.1002/anie.201601875
ani(Ph)2QM		E Param.: -12.18	Angew. Chem. Int. Ed. 2002, 41, 91-95 10.1002/1521-3773(20[...]
4-nitro-<i>trans-beta</i>-nitrostyrene		E Param.: -12.37	J. Org. Chem. 2011, 76, 9370-9378 10.1021/jo201678u
4-cyano-<i>trans-beta</i>-nitrostyrene		E Param.: -12.61	J. Org. Chem. 2011, 76, 9370-9378 10.1021/jo201678u
dmaBBS		E Param.: -12.76	J. Org. Chem. 2007, 72, 9170-9180 10.1021/jo071273g
p-(dimethylamino)benzylidene Meldrum's acid		E Param.: -12.76	J. Org. Chem. 2008, 73, 2738-2745 10.1021/jo702590s
(2-phenylethene-1,1-diyldisulfonyl)dibenzene	DMSO	E Param.: -12.93	Chem. Asian J. 2012, 7, 1401-1407 10.1002/asia.201101046
2-(4-methoxybenzylidene)benzo[d][1,3]dithiole 1,1,3,3-tetraoxide	DMSO	E Param.: -13.02	Chem. Asian J. 2012, 7, 1401-1407 10.1002/asia.201101046
(E)-6-(4-nitrobenzylidene)benzo[d][1,3]dioxol-5(6H)-one		E Param.: -13.15	Chem. Eur. J. 2025, 31, e202403785 10.1002/chem.202403785
1,2-diaza-1,3-diene 1a	DMSO	E Param.: -13.28	Chem. Eur. J. 2010, 16, 12008-12016 10.1002/chem.201000828
p-(dimethylamino)benzylidenemalononitrile		E Param.: -13.30	J. Org. Chem. 2003, 68, 6880-6886 10.1021/jo0344182
4-bromo-<i>trans-beta</i>-nitrostyrene		E Param.: -13.37	J. Org. Chem. 2011, 76, 9370-9378 10.1021/jo201678u
dma(Ph)2QM		E Param.: -13.39	Angew. Chem. Int. Ed. 2002, 41, 91-95 10.1002/1521-3773(20[...]
(E)-6-(4-(trifluoromethyl)benzylidene)benzo[d][1,3]dioxol-5(6H)-one		E Param.: -13.54	Chem. Eur. J. 2025, 31, e202403785 10.1002/chem.202403785
2-(p-(dimethylamino)benzylidene)-indan-1,3-dione		E Param.: -13.56	Org. Biomol. Chem. 2007, 5, 3020-3026 10.1039/b708025e
2,6-di-tert-butyl-4-ethylidenecyclohexa-2,5-dien-1-one		E Param.: -13.68	Chem. Eur. J. 2025, 31, e202501224 10.1002/chem.202501224
julBBS		E Param.: -13.84	J. Org. Chem. 2007, 72, 9170-9180 10.1021/jo071273g
<i>trans-beta</i>-nitrostyrene		E Param.: -13.85	J. Org. Chem. 2011, 76, 9370-9378 10.1021/jo201678u
(2-(4-methoxyphenyl)ethene-1,1-diyldisulfonyl)dibenzene	DMSO	E Param.: -13.88	Chem. Asian J. 2012, 7, 1401-1407 10.1002/asia.201101046
1,2-diaza-1,3-diene 1b	DMSO	E Param.: -13.90	Chem. Eur. J. 2010, 16, 12008-12016 10.1002/chem.201000828
jul Meldrum's acid		E Param.: -13.97	J. Org. Chem. 2008, 73, 2738-2745 10.1021/jo702590s
(E)-6-(4-chlorobenzylidene)benzo[d][1,3]dioxol-5(6H)-one		E Param.: -13.99	Chem. Eur. J. 2025, 31, e202403785 10.1002/chem.202403785
(E)-6-(3-fluorobenzylidene)benzo[d][1,3]dioxol-5(6H)-one		E Param.: -14.00	Chem. Eur. J. 2025, 31, e202403785 10.1002/chem.202403785
N-methyl maleimide	DMSO	E Param.: -14.07	Eur. J. Org. Chem. 2014, , 2956-2963 10.1002/ejoc.201301779
4-methyl-<i>trans-beta</i>-nitrostyrene		E Param.: -14.23	J. Org. Chem. 2011, 76, 9370-9378 10.1021/jo201678u
2,6-di-tert.butyl-4-(4-nitrobenzylidene)cyclohexa-2,5-dienone		E Param.: -14.36	Eur. J. Org. Chem. 2009, , 3203-3211 10.1002/ejoc.200900299