Mayr's Database of Reactivity Parameters

C-Nucleophiles

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Name Solvent Reactivity
Parameters
Classification Reference
(title or year)
1,3-bis(2,6-diisopropylphenyl)-4-methylene-5-phenyl-4,5-dihydro-1H-1,2,3-triazol-3-ium-5-ide (in THF)
C33H41N3 *
THF

N  Param.: 22.80

sN Param.: 0.60
*** Angew. Chem. Int. Ed. 2023, 62, e202309790
10.1002/anie.202309790
1,3-Bis(2,6-diisopropylphenyl)-5-(4-methoxyphenyl)-4-methylene-4,5-dihydro-1H-1,2,3-triazol-3-ium-5-ide (in THF)
C34H43N3O *
THF

N  Param.: 23.55

sN Param.: 0.56
*** Angew. Chem. Int. Ed. 2023, 62, e202309790
10.1002/anie.202309790
1,3-bis(2,6-diisopropylphenyl)-5-methyl-4-methylene-4,5-dihydro-1H-1,2,3-triazol-3-ium-5-ide (in THF)
C28H39N3 *
THF

N  Param.: 24.86

sN Param.: 0.52
*** Angew. Chem. Int. Ed. 2023, 62, e202309790
10.1002/anie.202309790
1,3-Bis(2,6-diisopropylphenyl)-5-methylene-4-(2,4,6-triisopropylphenyl)-4,5-dihydro-1H-1,2,3-triazol-3-ium-4-ide (in THF)
C35H39F6N3 *
THF

N  Param.: 21.36

sN Param.: 0.42
*** Angew. Chem. Int. Ed. 2023, 62, e202309790
10.1002/anie.202309790
1,3-Bis(2,6-diisopropylphenyl)-5-methylene-4-(2,4,6-triisopropylphenyl)-4,5-dihydro-1H-1,2,3-triazol-3-ium-4-ide (in THF)
C42H59N3 *
THF

N  Param.: 20.78

sN Param.: 0.61
*** Angew. Chem. Int. Ed. 2023, 62, e202309790
10.1002/anie.202309790
1,3-diethoxy-2-fluoro-1,3-dioxopropan-2-ide (in DMSO)
C7H10FO4 *
DMSO

N  Param.: 20.63

sN Param.: 0.76
*** Angew. Chem. Int. Ed. 2016, 55, 12845-12848
10.1002/anie.201605616
1,3-diethyl-thiobarbiturate anion (in DMSO)
C8H11N2O2S *
DMSO

N  Param.: 14.90

sN Param.: 0.80
*** J. Org. Chem. 2017, 82, 8476-8488
10.1021/acs.joc.7b01223
1,3-Diisopropyl-4-methylene-5-phenyl-4,5-dihydro-1H-1,2,3-triazol-3-ium-5-ide (in THF)
C15H21N3 *
THF

N  Param.: 30.25

sN Param.: 0.54
*** Angew. Chem. Int. Ed. 2023, 62, e202309790
10.1002/anie.202309790
1,3-dimesityl-1H-imidazol-3-ium-2-ide (in THF)
C21H24N2 *
THF

N  Param.: 21.72

sN Param.: 0.45
*** Angew. Chem. Int. Ed. 2011, 50, 6915-6919
10.1002/anie.201102435
1,3-dimesityl-2-methylene-2,3-dihydro-1H-imidazole (in THF)
C22H26N2 *
THF

N  Param.: 17.80

sN Param.: 0.79
*** J. Org. Chem. 2021, 86, 2974-2985
10.1021/acs.joc.0c02838
1,3-dimesityl-4,5-dihydro-1H-imidazol-3-ium-2-ide (in THF)
C21H26N2 *
THF

N  Param.: 23.35

sN Param.: 0.40
*** Angew. Chem. Int. Ed. 2011, 50, 6915-6919
10.1002/anie.201102435
1,3-dimethoxybenzene
C8H10O2 *
dichloromethane

N  Param.: 2.48

sN Param.: 1.09
***** J. Am. Chem. Soc. 2001, 123, 9500-9512
10.1021/ja010890y
1,3-dimethyl-2-methylene-1,2-dihydropyridine (in DMSO)
C8H11N *
DMSO

N  Param.: 19.91

sN Param.: 0.62
*** Eur. J. Org. Chem. 2024, 27, e202400373
10.1002/ejoc.202400373
1,3-dimethyl-2-methylene-1,2-dihydropyridine (in MeCN)
C8H11N *
MeCN

N  Param.: 19.69

sN Param.: 0.61
*** Eur. J. Org. Chem. 2024, 27, e202400373
10.1002/ejoc.202400373
1,3-dimethyl-2-methylene-2,3-dihydro-1H-benzo[d]imidazole
C10H12N2 *
THF

N  Param.: 19.84

sN Param.: 0.58
*** J. Org. Chem. 2021, 86, 2974-2985
10.1021/acs.joc.0c02838
1,3-dimethyl-2-methylenehexahydropyrimidine (in THF)
C7H14N2 *
THF

N  Param.: 18.68

sN Param.: 0.63
*** J. Org. Chem. 2021, 86, 2974-2985
10.1021/acs.joc.0c02838
1,3-dimethyl-2-methyleneimidazolidine (in THF)
C6H12N2 *
THF

N  Param.: 18.11

sN Param.: 0.68
*** J. Org. Chem. 2021, 86, 2974-2985
10.1021/acs.joc.0c02838
1,3-dimethylbarbiturate anion (in DMSO)
C6H7N2O3 *
DMSO

N  Param.: 17.46

sN Param.: 0.72
*** J. Org. Chem. 2017, 82, 8476-8488
10.1021/acs.joc.7b01223
1,6-dimethyl-2-methylene-1,2-dihydropyridine (in DMSO)
C8H11N *
DMSO

N  Param.: 20.76

sN Param.: 0.60
*** Eur. J. Org. Chem. 2024, 27, e202400373
10.1002/ejoc.202400373
1-((4-chlorobenzylidene)amino)-2-ethoxy-2-oxoethan-1-ide (in DMSO)
*
DMSO

N  Param.: 29.02

sN Param.: 0.49
** Tetrahedron 2019, 75, 459-463
10.1016/j.tet.2018.1[...]
1-((diphenylmethylene)amino)-2-ethoxy-2-oxoethan-1-ide (in DMSO)
*
DMSO

N  Param.: 26.95

sN Param.: 0.52
*** Tetrahedron 2019, 75, 459-463
10.1016/j.tet.2018.1[...]
1-(1-azidovinyl)-4-(chloromethyl)benzene
C9H8ClN3 *
dichloromethane

N  Param.: 4.13

sN Param.: 0.96
*** Chem. Commun. 2026, 62, 5041-5045
10.1039/d6cc00190d
1-(1-azidovinyl)-4-(trifluoromethyl)benzene
C9H6F3N3 *
dichloromethane

N  Param.: 3.10

sN Param.: 0.77
*** Chem. Commun. 2026, 62, 5041-5045
10.1039/d6cc00190d
1-(1-azidovinyl)-4-methoxybenzene
C9H9N3O *
dichloromethane

N  Param.: 6.08

sN Param.: 0.99
*** Chem. Commun. 2026, 62, 5041-5045
10.1039/d6cc00190d
1-(1-azidovinyl)-4-methylbenzene
C9H9N3 *
dichloromethane

N  Param.: 5.47

sN Param.: 0.87
*** Chem. Commun. 2026, 62, 5041-5045
10.1039/d6cc00190d
1-(1-azidovinyl)naphthalene
C12H9N3 *
dichloromethane

N  Param.: 3.17

sN Param.: 0.88
*** Chem. Commun. 2026, 62, 5041-5045
10.1039/d6cc00190d
1-(1-cyclohexenyl)-4-methylpiperazine
C11H20N2 *
dichloromethane

N  Param.: 12.51

sN Param.: 0.80
* Chem. Eur. J. 2003, 9, 2209-2218
10.1002/chem.200204666
1-(3-chloropyridin-1-ium-1-yl)-2-oxo-2-phenylethan-1-ide (in DMSO)
C13H11ClNO *
DMSO

N  Param.: 17.98

sN Param.: 0.63
*** J. Am. Chem. Soc. 2013, 135, 15216-15224
10.1021/ja407885h
1-(4-(dimethylamino)pyridin-1-ium-1-yl)-2-oxo-2-phenylethan-1-ide (in DMSO)
C15H17N2O *
DMSO

N  Param.: 21.61

sN Param.: 0.58
*** J. Am. Chem. Soc. 2013, 135, 15216-15224
10.1021/ja407885h
1-(4-(tert-butyl)phenyl)-2-methylene-4,6-diphenyl-1,2-dihydropyridine (in DMSO)
C28H27N *
DMSO

N  Param.: 19.36

sN Param.: 0.68
*** Eur. J. Org. Chem. 2024, 27, e202400373
10.1002/ejoc.202400373
1-(benzylideneamino)-2-ethoxy-2-oxoethan-1-ide (in DMSO)
*
DMSO

N  Param.: 29.10

sN Param.: 0.50
* Tetrahedron 2019, 75, 459-463
10.1016/j.tet.2018.1[...]
1-(ethoxycarbonyl)-2-oxocyclododecan-1-ide (in DMSO)
C15H25O3 *
DMSO

N  Param.: 20.60

sN Param.: 0.63
*** Eur. J. Org. Chem. 2015, , 7594-7601
10.1002/ejoc.201501107
1-(ethoxycarbonyl)-2-oxocycloheptan-1-ide
C10H15O3 *
DMSO

N  Param.: 19.53

sN Param.: 0.83
*** Eur. J. Org. Chem. 2015, , 7594-7601
10.1002/ejoc.201501107
1-(ethoxycarbonyl)-2-oxocyclohexan-1-ide (in DMSO)
C9H13O3 *
DMSO

N  Param.: 18.32

sN Param.: 0.84
*** Eur. J. Org. Chem. 2015, , 7594-7601
10.1002/ejoc.201501107
1-(ethoxycarbonyl)-2-oxocyclooctan-1-ide (in DMSO)
C11H17O3 *
DMSO

N  Param.: 20.02

sN Param.: 0.76
*** Eur. J. Org. Chem. 2015, , 7594-7601
10.1002/ejoc.201501107
1-(ethoxycarbonyl)-2-oxocyclopentan-1-ide (in DMSO)
C8H11O3 *
DMSO

N  Param.: 18.63

sN Param.: 0.82
*** Eur. J. Org. Chem. 2015, , 7594-7601
10.1002/ejoc.201501107
1-(isoquinolin-2-ium-2-yl)-2-oxo-2-phenylethan-1-ide (in DMSO)
C17H14NO *
DMSO

N  Param.: 20.08

sN Param.: 0.57
*** J. Am. Chem. Soc. 2013, 135, 15216-15224
10.1021/ja407885h
1-(N-morpholino)cyclohexene
C10H17NO *
dichloromethane

N  Param.: 11.40

sN Param.: 0.83
***** J. Am. Chem. Soc. 2001, 123, 9500-9512
10.1021/ja010890y
1-(N-morpholino)cyclopentene
C9H15NO *
dichloromethane

N  Param.: 13.41

sN Param.: 0.82
*** Chem. Eur. J. 2003, 9, 2209-2218
10.1002/chem.200204666
1-(N-piperidino)cyclohexene
C11H19N *
dichloromethane

N  Param.: 13.36

sN Param.: 0.81
***** J. Am. Chem. Soc. 2001, 123, 9500-9512
10.1021/ja010890y
1-(N-piperidino)cyclohexene (in MeCN)
*
MeCN

N  Param.: 14.02

sN Param.: 0.76
*** J. Am. Chem. Soc. 2013, 135, 6579-6587
10.1021/ja401106x
1-(N-piperidino)cyclopentene
C10H17N *
dichloromethane

N  Param.: 15.06

sN Param.: 0.82
*** Chem. Eur. J. 2003, 9, 2209-2218
10.1002/chem.200204666
1-(N-pyrrolidino)cyclohexene
C10H17N *
dichloromethane

N  Param.: 14.91

sN Param.: 0.86
*** Chem. Eur. J. 2003, 9, 2209-2218
10.1002/chem.200204666
1-(N-pyrrolidino)cyclohexene (in MeCN)
*
MeCN

N  Param.: 16.42

sN Param.: 0.70
*** Angew. Chem. Int. Ed. 2010, 49, 9526-9529
10.1002/anie.201004344
1-(N-pyrrolidino)cyclopentene
C9H15N *
dichloromethane

N  Param.: 15.91

sN Param.: 0.86
*** Chem. Eur. J. 2003, 9, 2209-2218
10.1002/chem.200204666
1-(p-tolyl)-1-(trimethylsilyl)ethene
C12H18Si *
dichloromethane

N  Param.: -0.65

sN Param.: 1.59
*** Chem. Eur. J. 2014, 20, 1103-1110
10.1002/chem.201303215
1-(perfluorophenyl)-1-(trimethylsiloxy)ethene
*
dichloromethane

N  Param.: 1.47

sN Param.: 0.89
*** Org. Lett. 2012, 14, 3990-3993
10.1021/ol301766w
1-(phenylethynyl)pyrrolidin-2-one
C12H11NO *
dichloromethane

N  Param.: 3.12

sN Param.: 0.85
* Angew. Chem. Int. Ed. 2014, 53, 4968-4971
10.1002/anie.201402055
1-(phenylmethylamino)cyclohexene
C13H17N *
dichloromethane

N  Param.: 10.73

sN Param.: 0.81
*** Chem. Eur. J. 2003, 9, 2209-2218
10.1002/chem.200204666
1-(phenylmethylamino)cyclopentene
C12H15N *
dichloromethane

N  Param.: 12.90

sN Param.: 0.79
*** Chem. Eur. J. 2003, 9, 2209-2218
10.1002/chem.200204666