
PhCH=N+Me2 (in MeCN) | MeCN | E Parameter: -9.27
|    | J. Am. Chem. Soc. 2013, 135, 6579-6587 DOI: 10.1021/ja401106x |

pTolCH=N+CH2 (in MeCN) | MeCN | E Parameter: -9.64
|    | J. Am. Chem. Soc. 2013, 135, 6579-6587 DOI: 10.1021/ja401106x |

p-AniCH=N+Me2 (in MeCN) | MeCN | E Parameter: -10.69
|    | J. Am. Chem. Soc. 2013, 135, 6579-6587 DOI: 10.1021/ja401106x |

PhCH=N+(CH2)4 (in MeCN) | MeCN | E Parameter: -9.35
|    | J. Am. Chem. Soc. 2013, 135, 6579-6587 DOI: 10.1021/ja401106x |

PhCH=N+(CH2)5 (in MeCN) | MeCN | E Parameter: -9.60
|    | J. Am. Chem. Soc. 2013, 135, 6579-6587 DOI: 10.1021/ja401106x |

p-CF3-C6H4-CH=N+Me2 (in MeCN) | MeCN | E Parameter: -8.34
|    | J. Am. Chem. Soc. 2013, 135, 6579-6587 DOI: 10.1021/ja401106x |

(S,E)-5-benzyl-2,2,3-trimethyl-1-((E)-3-(4-nitrophenyl)allylidene)-4-oxoimidazolidin-1-ium | dichloromethane | E Parameter: -5.90
|   | Asian J. Org. Chem. 2014, 3, 550-555 DOI: 10.1002/ajoc.201402009 |

(S,E)-5-benzyl-1-((E)-3-(4-cyanophenyl)allylidene)-2,2,3-trimethyl-4-oxoimidazolidin-1-ium | dichloromethane | E Parameter: -6.00
|   | Asian J. Org. Chem. 2014, 3, 550-555 DOI: 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 Parameter: -10.60
|   | Asian J. Org. Chem. 2014, 3, 550-555 DOI: 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 Parameter: -7.20
|   | Asian J. Org. Chem. 2014, 3, 550-555 DOI: 10.1002/ajoc.201402009 |

(S,E)-5-benzyl-1-((E)-3-(4-methoxyphenyl)allylidene)-2,2,3-trimethyl-4-oxoimidazolidin-1-ium | dichloromethane | E Parameter: -8.00
|   | Asian J. Org. Chem. 2014, 3, 550-555 DOI: 10.1002/ajoc.201402009 |

(S,E)-5-benzyl-2,2,3-trimethyl-1-((E)-3-(3-nitrophenyl)allylidene)-4-oxoimidazolidin-1-ium | dichloromethane | E Parameter: -6.10
|   | Asian J. Org. Chem. 2014, 3, 550-555 DOI: 10.1002/ajoc.201402009 |

(S,E)-5-((1H-indol-3-yl)methyl)-2,2,3-trimethyl-4-oxo-1-((E)-3-phenylallylidene)imidazolidin-1-ium | dichloromethane | E Parameter: -7.30
|   | Asian J. Org. Chem. 2014, 3, 550-555 DOI: 10.1002/ajoc.201402009 |

(2S,5S)-5-benzyl-3-methyl-4-oxo-1-(3-phenylallylidene)-2-((E)-styryl)imidazolidin-1-ium | dichloromethane | E Parameter: -5.90
|   | Asian J. Org. Chem. 2014, 3, 550-555 DOI: 10.1002/ajoc.201402009 |

Me2N+=CH-CH-Ph | 0 | E Parameter: -9.20
|    | Angew. Chem. Int. Ed. 2008, 47, 8723-8726 DOI: 10.1002/anie.200802889 |

pyrN+=CH-CH-Ph | 0 | E Parameter: -9.80
|    | Angew. Chem. Int. Ed. 2008, 47, 8723-8726 DOI: 10.1002/anie.200802889 |

pipN+=CH-CH-Ph | 0 | E Parameter: -10.30
|  | Angew. Chem. Int. Ed. 2008, 47, 8723-8726 DOI: 10.1002/anie.200802889 |

(PhCH2)2N+=CH-CH-Ph | 0 | E Parameter: -8.50
|    | Angew. Chem. Int. Ed. 2008, 47, 8723-8726 DOI: 10.1002/anie.200802889 |

Jorgensen/Hayashi-iminium ion | 0 | E Parameter: -8.20
|    | Angew. Chem. Int. Ed. 2008, 47, 8723-8726 DOI: 10.1002/anie.200802889 |

MacMillan-iminium ion (1st generation) | MeCN | E Parameter: -7.37
|    | Angew. Chem. Int. Ed. 2011, 50, 9953-9956 DOI: 10.1002/anie.201103683 |

mor iminium | 0 | E Parameter: -8.60
|    | Angew. Chem. Int. Ed. 2008, 47, 8723-8726 DOI: 10.1002/anie.200802889 |

MacMillan-iminium ion (2nd generation) | MeCN | E Parameter: -5.52
|    | Angew. Chem. Int. Ed. 2011, 50, 9953-9956 DOI: 10.1002/anie.201103683 |

MacMillan-iminium ion (spiro) | MeCN | E Parameter: -7.67
|    | Angew. Chem. Int. Ed. 2011, 50, 9953-9956 DOI: 10.1002/anie.201103683 |

indolecarboxylate derived iminium ion | dichloromethane | E Parameter: -9.50
|   | Angew. Chem. Int. Ed. 2009, 48, 5034-5037 DOI: 10.1002/anie.200900933 |

(S,E)-2,2,3-trimethyl-4-oxo-5-((perfluorophenyl)methyl)-1-((E)-3-phenylallylidene)imidazolidin-1-ium | dichloromethane | E Parameter: -6.00
|   | Angew. Chem. Int. Ed. 2013, 52, 7967-7971 DOI: 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 Parameter: -7.00
|   | Angew. Chem. Int. Ed. 2013, 52, 7967-7971 DOI: 10.1002/anie.201301864 |

N-ethylidenecarbazolium ion | 0 | E Parameter: 2.41
|    | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c |

N-methylacridinium ion | 0 | E Parameter: -7.15
|    | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c |

dimethylmethyleneammonium ion | 0 | E Parameter: -6.69
|  | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c |

methyl(phenyl)methyleneammonium ion | 0 | E Parameter: -5.17
|  | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c |

Vilsmeier ion | 0 | E Parameter: -5.77
|  | Acc. Chem. Res. 2003, 36, 66-77 DOI: 10.1021/ar020094c |