(PhCH2)2N+=CH-CH-Ph |
| E Param.: -8.50 |    | Angew. Chem. Int. Ed. 2008, 47, 8723-8726 10.1002/anie.200802889 |
p-CF3-C6H4-CH=N+Me2 (in MeCN) |
MeCN | E Param.: -8.34 |    | J. Am. Chem. Soc. 2013, 135, 6579-6587 10.1021/ja401106x |
(thq)2CH+ |
| E Param.: -8.22 |      | J. Am. Chem. Soc. 2001, 123, 9500-9512 10.1021/ja010890y |
Jorgensen/Hayashi-iminium ion |
| E Param.: -8.20 |    | Angew. Chem. Int. Ed. 2008, 47, 8723-8726 10.1002/anie.200802889 |
(S,E)-5-benzyl-1-((E)-3-(4-methoxyphenyl)allylidene)-2,2,3-trimethyl-4-oxoimidazolidin-1-ium |
dichloromethane | E Param.: -8.00 |   | Asian J. Org. Chem. 2014, 3, 550-555 10.1002/ajoc.201402009 |
(4-NMe2)-tritylium ion |
| E Param.: -7.93 |  | J. Am. Chem. Soc. 2003, 125, 286-295 10.1021/ja021010y |
1-methyl-3-((julolidin-9-yl)methylene)-3H-indol-1-ium ion |
| E Param.: -7.79 |    | J. Org. Chem. 2015, 80, 8643-8656 10.1021/acs.joc.5b01298 |
(pyr)2CH+ |
| E Param.: -7.69 |      | J. Am. Chem. Soc. 2001, 123, 9500-9512 10.1021/ja010890y |
MacMillan-iminium ion (spiro) |
MeCN | E Param.: -7.67 |    | Angew. Chem. Int. Ed. 2011, 50, 9953-9956 10.1002/anie.201103683 |
diarylallylium ion (4-NMe2)2 |
| E Param.: -7.50 |    | J. Org. Chem. 2011, 76, 9391-9408 10.1021/jo201668w |
MacMillan-iminium ion (1st generation) |
MeCN | E Param.: -7.37 |    | Angew. Chem. Int. Ed. 2011, 50, 9953-9956 10.1002/anie.201103683 |
(S,E)-5-((1H-indol-3-yl)methyl)-2,2,3-trimethyl-4-oxo-1-((E)-3-phenylallylidene)imidazolidin-1-ium |
dichloromethane | E Param.: -7.30 |   | Asian J. Org. Chem. 2014, 3, 550-555 10.1002/ajoc.201402009 |
(S,E)-5-benzyl-2,2,3-trimethyl-4-oxo-1-((E)-3-(p-tolyl)allylidene)imidazolidin-1-ium |
dichloromethane | E Param.: -7.20 |   | Asian J. Org. Chem. 2014, 3, 550-555 10.1002/ajoc.201402009 |
N-methylacridinium ion |
| E Param.: -7.15 |    | Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c |
(dma)2CH+ |
| E Param.: -7.02 |      | J. Am. Chem. Soc. 2001, 123, 9500-9512 10.1021/ja010890y |
(S,E)-2,2,3-trimethyl-4-oxo-1-((E)-3-phenylallylidene)-5-(3,4,5-trimethoxybenzyl)imidazolidin-1-ium |
dichloromethane | E Param.: -7.00 |   | Angew. Chem. Int. Ed. 2013, 52, 7967-7971 10.1002/anie.201301864 |
bis(5-methoxy-1-methylindol-3-yl)methylium ion |
| E Param.: -6.90 |    | J. Org. Chem. 2015, 80, 8643-8656 10.1021/acs.joc.5b01298 |
dimethylmethyleneammonium ion |
| E Param.: -6.69 |  | Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c |
2-phenyl-1,3-dithianylium ion |
| E Param.: -6.43 |    | Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c |
3-(4-(dimethylamino)benzylidene)-1-methyl-3H-indol-1-ium ion |
| E Param.: -6.26 |    | J. Org. Chem. 2015, 80, 8643-8656 10.1021/acs.joc.5b01298 |