p-AniCH=N+Me2 (in MeCN) |
MeCN | E Param.: -10.69 | | J. Am. Chem. Soc. 2013, 135, 6579-6587 10.1021/ja401106x |
(S,E)-5-benzyl-1-((E)-3-(4-(dimethylamino)phenyl)allylidene)-2,2,3-trimethyl-4-oxoimidazolidin-1-ium |
dichloromethane | E Param.: -10.60 | | Asian J. Org. Chem. 2014, 3, 550-555 10.1002/ajoc.201402009 |
pipN+=CH-CH-Ph |
| E Param.: -10.30 | | Angew. Chem. Int. Ed. 2008, 47, 8723-8726 10.1002/anie.200802889 |
pyrN+=CH-CH-Ph |
| E Param.: -9.80 | | Angew. Chem. Int. Ed. 2008, 47, 8723-8726 10.1002/anie.200802889 |
pTolCH=N+CH2 (in MeCN) |
MeCN | E Param.: -9.64 | | J. Am. Chem. Soc. 2013, 135, 6579-6587 10.1021/ja401106x |
PhCH=N+(CH2)5 (in MeCN) |
MeCN | E Param.: -9.60 | | J. Am. Chem. Soc. 2013, 135, 6579-6587 10.1021/ja401106x |
indolecarboxylate derived iminium ion |
dichloromethane | E Param.: -9.50 | | Angew. Chem. Int. Ed. 2009, 48, 5034-5037 10.1002/anie.200900933 |
PhCH=N+(CH2)4 (in MeCN) |
MeCN | E Param.: -9.35 | | J. Am. Chem. Soc. 2013, 135, 6579-6587 10.1021/ja401106x |
PhCH=N+Me2 (in MeCN) |
MeCN | E Param.: -9.27 | | J. Am. Chem. Soc. 2013, 135, 6579-6587 10.1021/ja401106x |
Me2N+=CH-CH-Ph |
| E Param.: -9.20 | | Angew. Chem. Int. Ed. 2008, 47, 8723-8726 10.1002/anie.200802889 |
mor iminium |
| E Param.: -8.60 | | Angew. Chem. Int. Ed. 2008, 47, 8723-8726 10.1002/anie.200802889 |
(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 |
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 |
MacMillan-iminium ion (spiro) |
MeCN | E Param.: -7.67 | | Angew. Chem. Int. Ed. 2011, 50, 9953-9956 10.1002/anie.201103683 |
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 |
(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 |
dimethylmethyleneammonium ion |
| E Param.: -6.69 | | Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c |
(S,E)-5-benzyl-2,2,3-trimethyl-1-((E)-3-(3-nitrophenyl)allylidene)-4-oxoimidazolidin-1-ium |
dichloromethane | E Param.: -6.10 | | Asian J. Org. Chem. 2014, 3, 550-555 10.1002/ajoc.201402009 |
(S,E)-2,2,3-trimethyl-4-oxo-5-((perfluorophenyl)methyl)-1-((E)-3-phenylallylidene)imidazolidin-1-ium |
dichloromethane | E Param.: -6.00 | | Angew. Chem. Int. Ed. 2013, 52, 7967-7971 10.1002/anie.201301864 |
(S,E)-5-benzyl-1-((E)-3-(4-cyanophenyl)allylidene)-2,2,3-trimethyl-4-oxoimidazolidin-1-ium |
dichloromethane | E Param.: -6.00 | | Asian J. Org. Chem. 2014, 3, 550-555 10.1002/ajoc.201402009 |
(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 |
Vilsmeier ion |
| E Param.: -5.77 | | Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c |
MacMillan-iminium ion (2nd generation) |
MeCN | E Param.: -5.52 | | Angew. Chem. Int. Ed. 2011, 50, 9953-9956 10.1002/anie.201103683 |
methyl(phenyl)methyleneammonium ion |
| E Param.: -5.17 | | Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c |
N-ethylidenecarbazolium ion |
| E Param.: 2.41 | | Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c |