Mayr's Database of Reactivity Parameters

N-Nucleophiles

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Name Solvent Reactivity
Parameters
Classification Reference
(title or year)
(S)-diphenyl(pyrrolidin-2-yl)methanol
C17H19NO *
MeCN

N  Param.: 16.18

sN Param.: 0.56
*** J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
(S)-2-(azidodiphenylmethyl)pyrrolidine
C17H18N4 *
MeCN

N  Param.: 9.90

sN Param.: 1.22
*** J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
2-(triphenylsilyl)pyrrolidine
C22H23NSi *
MeCN

N  Param.: 14.00

sN Param.: 0.84
*** J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
(S)-5-benzyl-2,2,3-trimethylimidazolidin-4-one
C13H18N2O *
MeCN

N  Param.: 6.04

sN Param.: 0.92
*** J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
(2S,5S)-5-benzyl-2-(tert-butyl)-3-methylimidazolidin-4-one
C15H22N2O *
MeCN

N  Param.: 5.44

sN Param.: 1.12
*** J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
(2S,5S)-5-benzyl-3-methyl-2-(5-methylfuran-2-yl)imidazolidin-4-one
C16H18N2O2 *
MeCN

N  Param.: 8.76

sN Param.: 0.89
*** J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
(2R,5S)-5-benzyl-3-methyl-2-(5-methylfuran-2-yl)imidazolidin-4-one
C16H18N2O2 *
MeCN

N  Param.: 7.39

sN Param.: 1.00
*** J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
TCAP (in MeCN)
C11H14N2 *
MeCN

N  Param.: 15.60

sN Param.: 0.68
*** Chem. Eur. J. 2013, 19, 6435-6442
10.1002/chem.201204452
4-pyrrolidinopyridine (in MeCN)
C9H12N2 *
MeCN

N  Param.: 14.99

sN Param.: 0.69
*** Chem. Eur. J. 2013, 19, 6435-6442
10.1002/chem.201204452
(F)2-HBTM (in CH2Cl2)
C16H12F2N2S *
dichloromethane

N  Param.: 10.83

sN Param.: 0.80
*** ARKIVOC 2024, (4), 202312093
10.24820/ark.5550190[...]
pyridine (in MeCN)
C5H5N *
MeCN

N  Param.: 13.60

sN Param.: 0.60
*** Synthesis 2017, 49, 3495-3504
10.1055/s-0036-1590504
2-methylpyridine (in CH2Cl2)
C6H7N *
dichloromethane

N  Param.: 10.52

sN Param.: 0.78
*** Synthesis 2017, 49, 3495-3504
10.1055/s-0036-1590504
2-methylpyridine (in MeCN)
C6H7N *
MeCN

N  Param.: 10.98

sN Param.: 0.66
*** Synthesis 2017, 49, 3495-3504
10.1055/s-0036-1590504
2,6-dimethylpyridine (in CH2Cl2)
C7H9N *
dichloromethane

N  Param.: 9.87

sN Param.: 0.68
*** Synthesis 2017, 49, 3495-3504
10.1055/s-0036-1590504
2,6-dimethylpyridine (in MeCN)
C7H9N *
MeCN

N  Param.: 9.11

sN Param.: 0.69
*** Synthesis 2017, 49, 3495-3504
10.1055/s-0036-1590504
2,4,6-trimethylpyridine (in CH2Cl2)
C8H11N *
dichloromethane

N  Param.: 9.34

sN Param.: 0.71
*** Synthesis 2017, 49, 3495-3504
10.1055/s-0036-1590504
2,4,6-trimethylpyridine (in MeCN)
C8H11N *
MeCN

N  Param.: 9.39

sN Param.: 0.60
*** Synthesis 2017, 49, 3495-3504
10.1055/s-0036-1590504
pyridin-4-yl((trifluoromethyl)sulfonyl)amide (Ph4P+) (in CH2Cl2)
C6H4F3N2O2S- *
dichloromethane

N  Param.: 17.88

sN Param.: 0.73
*** J. Am. Chem. Soc. 2025, 147, 5043-5050
10.1021/jacs.4c14825
((4-methoxyphenyl)sulfonyl)(pyridin-4-yl)amide (Ph4P+) (in CH2Cl2)
C12H11N2O3S- *
dichloromethane

N  Param.: 19.63

sN Param.: 0.65
*** J. Am. Chem. Soc. 2025, 147, 5043-5050
10.1021/jacs.4c14825
pyridin-4-yl((trifluoromethyl)sulfonyl)amide (Ph4P+) (in MeCN)
C6H4F3N2O2S- *
MeCN

N  Param.: 16.38

sN Param.: 0.60
*** J. Am. Chem. Soc. 2025, 147, 5043-5050
10.1021/jacs.4c14825
((4-methoxyphenyl)sulfonyl)(pyridin-4-yl)amide (Ph4P+) (in MeCN)
C12H11N2O3S- *
MeCN

N  Param.: 17.28

sN Param.: 0.65
*** J. Am. Chem. Soc. 2025, 147, 5043-5050
10.1021/jacs.4c14825
pyridin-4-yl((4-(trifluoromethyl)phenyl)sulfonyl)amide (Ph4P+) (in MeCN)
C12H8F3N2O2S- *
MeCN

N  Param.: 19.51

sN Param.: 0.47
*** J. Org. Chem. 2025, 90, 2298-2306
10.1021/acs.joc.4c02668
pyridin-4-yl(tosyl)amide (Ph4P+) (in MeCN)
C12H11N2O2S- *
MeCN

N  Param.: 17.19

sN Param.: 0.64
*** J. Org. Chem. 2025, 90, 2298-2306
10.1021/acs.joc.4c02668
pyridin-4-yl((trifluoromethyl)sulfonyl)amide (Bu4P+) (in MeCN)
C6H4F3N2O2S- *
MeCN

N  Param.: 16.48

sN Param.: 0.60
*** J. Org. Chem. 2025, 90, 2298-2306
10.1021/acs.joc.4c02668
pyridin-4-yl((trifluoromethyl)sulfonyl)amide (Bu4N+) (in MeCN)
C6H4F3N2O2S- *
MeCN

N  Param.: 16.68

sN Param.: 0.59
*** J. Org. Chem. 2025, 90, 2298-2306
10.1021/acs.joc.4c02668
O-DHPB (in CH2Cl2)
C10H10N2O *
dichloromethane

N  Param.: 13.31

sN Param.: 0.69
*** Angew. Chem. Int. Ed. 2025, 64, e202514865
10.1002/anie.202514865
O-HyperBTM (in CH2Cl2)
C19H20N2O *
dichloromethane

N  Param.: 13.01

sN Param.: 0.73
*** Angew. Chem. Int. Ed. 2025, 64, e202514865
10.1002/anie.202514865
Te-BTM (in CH2Cl2)
C15H12N2Te *
dichloromethane

N  Param.: 14.62

sN Param.: 0.66
*** Angew. Chem. Int. Ed. 2025, 64, e202514865
10.1002/anie.202514865
Se-DHPB (in CH2Cl2)
C10H10N2Se *
dichloromethane

N  Param.: 15.16

sN Param.: 0.66
*** Angew. Chem. Int. Ed. 2025, 64, e202514865
10.1002/anie.202514865
Se-tetramisole (Se-TM) (in CH2Cl2)
C11H12N2Se *
dichloromethane

N  Param.: 15.26

sN Param.: 0.60
*** Angew. Chem. Int. Ed. 2025, 64, e202514865
10.1002/anie.202514865
Se-BTM (in CH2Cl2)
C15H12N2Se *
dichloromethane

N  Param.: 14.27

sN Param.: 0.63
*** Angew. Chem. Int. Ed. 2025, 64, e202514865
10.1002/anie.202514865
Se-HBTM (in CH2Cl2)
C16H14N2Se *
dichloromethane

N  Param.: 14.42

sN Param.: 0.67
*** Angew. Chem. Int. Ed. 2025, 64, e202514865
10.1002/anie.202514865
Se-HyperBTM (in DCM)
C19H20N2Se *
dichloromethane

N  Param.: 16.11

sN Param.: 0.58
*** Angew. Chem. Int. Ed. 2025, 64, e202514865
10.1002/anie.202514865
Se-HyperBTM (in MeCN)
C19H20N2Se *
MeCN

N  Param.: 15.84

sN Param.: 0.57
*** Angew. Chem. Int. Ed. 2025, 64, e202514865
10.1002/anie.202514865
Se-HyperBTM (in THF)
C19H20N2Se *
THF

N  Param.: 14.19

sN Param.: 0.77
*** Angew. Chem. Int. Ed. 2025, 64, e202514865
10.1002/anie.202514865
Te-DHPB (in CH2Cl2)
C10H10N2Te *
dichloromethane

N  Param.: 16.63

sN Param.: 0.65
*** Angew. Chem. Int. Ed. 2025, 64, e202514865
10.1002/anie.202514865
tetramisole (TM) (in CH2Cl2)
C11H12N2S *
dichloromethane

N  Param.: 13.86

sN Param.: 0.68
*** Angew. Chem. Int. Ed. 2025, 64, e202514865
10.1002/anie.202514865
BTM (in CH2Cl2)
C15H12N2S *
dichloromethane

N  Param.: 13.06

sN Param.: 0.73
*** Angew. Chem. Int. Ed. 2025, 64, e202514865
10.1002/anie.202514865
7-F-BTM (in CH2Cl2)
C15H11FN2S *
dichloromethane

N  Param.: 13.46

sN Param.: 0.66
*** Angew. Chem. Int. Ed. 2025, 64, e202514865
10.1002/anie.202514865
7-MeO-BTM (in CH2Cl2)
C16H14N2OS *
dichloromethane

N  Param.: 13.15

sN Param.: 0.75
*** Angew. Chem. Int. Ed. 2025, 64, e202514865
10.1002/anie.202514865
DHPB (in CH2Cl2)
C10H10N2S *
dichloromethane

N  Param.: 13.86

sN Param.: 0.78
*** J. Org. Chem. 2011, 76, 5104-5112
10.1021/jo200803x
HBTM (in CH2Cl2)
C16H14N2S *
dichloromethane

N  Param.: 13.45

sN Param.: 0.72
*** J. Org. Chem. 2011, 76, 5104-5112
10.1021/jo200803x
Te-HyperBTM (in DCM)
C19H20N2Te *
dichloromethane

N  Param.: 16.63

sN Param.: 0.63
*** ChemistryEurope 2026, 4, e202500443
10.1002/ceur.202500443
8-MeO-HyperBTM
C20H22N2OS *
dichloromethane

N  Param.: 15.70

sN Param.: 0.63
*** ChemistryEurope 2026, 4, e202500434
10.1002/ceur.202500434
7-MeO-HyperBTM (in CH2Cl2)
C20H22N2OS *
dichloromethane

N  Param.: 14.95

sN Param.: 2.67
*** ChemistryEurope 2026, 4, e202500434
10.1002/ceur.202500434
7-MeS-HyperBTM (in CH2Cl2)
C20H22N2S2 *
dichloromethane

N  Param.: 14.62

sN Param.: 0.67
*** ChemistryEurope 2026, 4, e202500434
10.1002/ceur.202500434
7,8,9-(MeO)3-HyperBTM
C22H26N2O3S *
dichloromethane

N  Param.: 14.62

sN Param.: 0.67
*** ChemistryEurope 2026, 4, e202500434
10.1002/ceur.202500434
9-MeS-HyperBTM
C20H22N2S2 *
dichloromethane

N  Param.: 13.49

sN Param.: 0.78
*** ChemistryEurope 2026, 4, e202500434
10.1002/ceur.202500434
9-Me-HyperBTM
C20H22N2S *
dichloromethane

N  Param.: 14.76

sN Param.: 0.67
*** ChemistryEurope 2026, 4, e202500434
10.1002/ceur.202500434
7-PivO-HyperBTM
C24H28N2O2S *
dichloromethane

N  Param.: 14.49

sN Param.: 0.66
*** ChemistryEurope 2026, 4, e202500434
10.1002/ceur.202500434
7-Ms-HyperBTM
C20H22N2O2S2 *
dichloromethane

N  Param.: 12.52

sN Param.: 0.75
*** ChemistryEurope 2026, 4, e202500434
10.1002/ceur.202500434
HyperNTM
C23H22N2S *
dichloromethane

N  Param.: 14.47

sN Param.: 0.72
*** ChemistryEurope 2026, 4, e202500434
10.1002/ceur.202500434
HyperPTM
C27H24N2S *
dichloromethane

N  Param.: 13.43

sN Param.: 0.79
*** ChemistryEurope 2026, 4, e202500434
10.1002/ceur.202500434