N-substituted carbocations (iminium ions)

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Name	Solvent	Reactivity Parameters	Reference (title or year)
N-ethylidenecarbazolium ion		E Param.: 2.41	Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c
N-methylacridinium ion		E Param.: -7.15	Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c
dimethylmethyleneammonium ion		E Param.: -6.69	Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c
methyl(phenyl)methyleneammonium ion		E Param.: -5.17	Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c
Vilsmeier ion		E Param.: -5.77	Acc. Chem. Res. 2003, 36, 66-77 10.1021/ar020094c
Me2N+=CH-CH-Ph		E Param.: -9.20	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
pipN+=CH-CH-Ph		E Param.: -10.30	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
Jorgensen/Hayashi-iminium ion		E Param.: -8.20	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
indolecarboxylate derived iminium ion	dichloromethane	E Param.: -9.50	Angew. Chem. Int. Ed. 2009, 48, 5034-5037 10.1002/anie.200900933
(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)-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
(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
(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-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
(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
(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
(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