(S,E)-5-benzyl-2,2,3-trimethyl-1-((E)-3-(4-nitrophenyl)allylidene)-4-oxoimidazolidin-1-ium |
dichloromethane | E Param.: -5.90 |   | Asian J. Org. Chem. 2014, 3, 550-555 10.1002/ajoc.201402009 |
(2S,5S)-5-benzyl-3-methyl-4-oxo-1-(3-phenylallylidene)-2-((E)-styryl)imidazolidin-1-ium |
dichloromethane | E Param.: -5.90 |   | Asian J. Org. Chem. 2014, 3, 550-555 10.1002/ajoc.201402009 |
(mpa)2CH+ |
| E Param.: -5.89 |      | J. Am. Chem. Soc. 2001, 123, 9500-9512 10.1021/ja010890y |
4-aza-6-nitrobenzofuroxan |
| E Param.: -5.86 |    | J. Org. Chem. 2005, 70, 6242-6253 10.1021/jo0505526 |
Vilsmeier ion |
| E Param.: -5.77 |  | Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c |
(mor)2CH+ |
| E Param.: -5.53 |      | J. Am. Chem. Soc. 2001, 123, 9500-9512 10.1021/ja010890y |
MacMillan-iminium ion (2nd generation) |
MeCN | E Param.: -5.52 |    | Angew. Chem. Int. Ed. 2011, 50, 9953-9956 10.1002/anie.201103683 |
4,6-dinitrobenzofurazan |
| E Param.: -5.46 |    | J. Org. Chem. 2005, 70, 6242-6253 10.1021/jo0505526 |
N-fluoro-2,6-dichloropyridinium tetrafluoroborate |
| E Param.: -5.29 |    | J. Am. Chem. Soc. 2018, 140, 11474-11486 10.1021/jacs.8b07147 |
Selectfluor |
| E Param.: -5.20 |    | J. Am. Chem. Soc. 2018, 140, 11474-11486 10.1021/jacs.8b07147 |
methyl(phenyl)methyleneammonium ion |
| E Param.: -5.17 |  | Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c |
(E)-2-methyl-3-(4-methylbenzylidene)-3H-indol-1-ium ion |
| E Param.: -5.15 |    | J. Org. Chem. 2015, 80, 8643-8656 10.1021/acs.joc.5b01298 |
4,6-dinitrobenzofuroxan |
| E Param.: -5.06 |    | J. Org. Chem. 2006, 71, 9088-9095 10.1021/jo0614339 |
(E)-2-(tert-butyl)-3-(4-methylbenzylidene)-3H-indol-1-ium |
dichloromethane | E Param.: -5.06 |  | Eur. J. Org. Chem. 2016, , 4050-4058 10.1002/ejoc.201600572 |
(E)-1,2-dimethyl-3-(4-methylbenzylidene)-3H-indol-1-ium ion |
| E Param.: -5.05 |    | J. Org. Chem. 2015, 80, 8643-8656 10.1021/acs.joc.5b01298 |
(E)-3-benzylidene-1,2-dimethyl-3H-indol-1-ium ion |
| E Param.: -4.96 |   | J. Org. Chem. 2015, 80, 8643-8656 10.1021/acs.joc.5b01298 |
2-(4-methoxyphenyl)chromenylium ion |
| E Param.: -4.95 |    | Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c |
4-nitro-6-(trifluoromethylsulfonyl)benzofuroxan |
| E Param.: -4.91 |    | J. Org. Chem. 2005, 70, 6242-6253 10.1021/jo0505526 |
(dpa)2CH+ |
| E Param.: -4.72 |      | J. Am. Chem. Soc. 2001, 123, 9500-9512 10.1021/ja010890y |
4,6-dinitrotetrazolopyridine |
| E Param.: -4.67 |    | J. Org. Chem. 2005, 70, 6242-6253 10.1021/jo0505526 |