Mayr's Database of Reactivity Parameters

N-Nucleophiles

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Name Solvent Reactivity
Parameters
Classification Reference
(title or year)
nitrite ion (in MeCN)
NO2*
MeCN

N  Param.: 17.20

sN Param.: 0.72
***Angew. Chem. Int. Ed. 2005, 44, 4623-4626
10.1002/anie.200501274
pyrrolidine (in 91M9AN)
C4H9N*
MeOH-MeCN mix

N  Param.: 15.97

sN Param.: 0.63
***Angew. Chem. Int. Ed. 2006, 45, 3869-3874
10.1002/anie.200600542
piperidine (in 91M9AN)
C5H11N*
MeOH-MeCN mix

N  Param.: 15.63

sN Param.: 0.64
***Angew. Chem. Int. Ed. 2006, 45, 3869-3874
10.1002/anie.200600542
morpholine (in 91M9AN)
C4H9NO*
MeOH-MeCN mix

N  Param.: 15.40

sN Param.: 0.64
***Angew. Chem. Int. Ed. 2006, 45, 3869-3874
10.1002/anie.200600542
diethanolamine (in 91M9AN)
C4H11NO2*
MeOH-MeCN mix

N  Param.: 13.71

sN Param.: 0.67
***Angew. Chem. Int. Ed. 2006, 45, 3869-3874
10.1002/anie.200600542
hydrazine (in 91M9AN)
H4N2*
MeOH-MeCN mix

N  Param.: 13.47

sN Param.: 0.70
***Angew. Chem. Int. Ed. 2006, 45, 3869-3874
10.1002/anie.200600542
2,2,2-trifluoroethylamine (in 91M9AN)
C2H4F3N*
MeOH-MeCN mix

N  Param.: 10.20

sN Param.: 0.92
***Angew. Chem. Int. Ed. 2006, 45, 3869-3874
10.1002/anie.200600542
imidazole (in 91M9AN)
C3H4N2*
MeOH-MeCN mix

N  Param.: 10.41

sN Param.: 0.70
***Angew. Chem. Int. Ed. 2006, 45, 3869-3874
10.1002/anie.200600542
hydroxylamine (in 91M9AN)
H3NO*
MeOH-MeCN mix

N  Param.: 12.23

sN Param.: 0.66
***Angew. Chem. Int. Ed. 2006, 45, 3869-3874
10.1002/anie.200600542
ethanolamine (in 91M9AN)
C2H7NO*
MeOH-MeCN mix

N  Param.: 13.23

sN Param.: 0.65
***Angew. Chem. Int. Ed. 2006, 45, 3869-3874
10.1002/anie.200600542
benzylamine (in 91M9AN)
C7H9N*
MeOH-MeCN mix

N  Param.: 13.46

sN Param.: 0.62
***Angew. Chem. Int. Ed. 2006, 45, 3869-3874
10.1002/anie.200600542
n-propylamine (in 91M9AN)
C3H9N*
MeOH-MeCN mix

N  Param.: 13.41

sN Param.: 0.66
***Angew. Chem. Int. Ed. 2006, 45, 3869-3874
10.1002/anie.200600542
DABCO (in MeCN)
C6H12N2*
MeCN

N  Param.: 18.80

sN Param.: 0.70
***Angew. Chem. Int. Ed. 2007, 46, 6176-6179
10.1002/anie.200701489
quinuclidine (in MeCN)
C7H13N*
MeCN

N  Param.: 20.54

sN Param.: 0.60
***Angew. Chem. Int. Ed. 2007, 46, 6176-6179
10.1002/anie.200701489
hydrazine (in MeCN)
*
MeCN

N  Param.: 16.45

sN Param.: 0.56
***Angew. Chem. Int. Ed. 2012, 51, 1353-1356
10.1002/anie.201107315
1,1-dimethylhydrazine (in MeCN)
*
MeCN

N  Param.: 11.72

sN Param.: 0.73
***Angew. Chem. Int. Ed. 2012, 51, 1353-1356
10.1002/anie.201107315
trimethylhydrazine (in MeCN)
*
MeCN

N  Param.: 12.43

sN Param.: 0.75
***Angew. Chem. Int. Ed. 2012, 51, 1353-1356
10.1002/anie.201107315
1,1-dimethylhydrazine (in MeCN)
*
MeCN

N  Param.: 22.41

sN Param.: 0.45
***Angew. Chem. Int. Ed. 2012, 51, 1353-1356
10.1002/anie.201107315
trimethylhydrazine (in MeCN)
*
MeCN

N  Param.: 17.75

sN Param.: 0.53
***Angew. Chem. Int. Ed. 2012, 51, 1353-1356
10.1002/anie.201107315
4-(dimethylamino)pyridine (in THF)
*
THF

N  Param.: 15.90

sN Param.: 0.66
***Angew. Chem. Int. Ed. 2011, 50, 6915-6919
10.1002/anie.201102435
DBU (in THF)
*
THF

N  Param.: 16.12

sN Param.: 0.67
***Angew. Chem. Int. Ed. 2011, 50, 6915-6919
10.1002/anie.201102435
1,1-dimethyl-2-methylenehydrazine (in CH2Cl2)
C3H8N2*
dichloromethane

N  Param.: 19.31

sN Param.: 0.46
***Angew. Chem. Int. Ed. 2013, 52, 11900-11904
10.1002/anie.201305092
N-methylenepyrrolidin-1-amine (in CH2Cl2)
C5H10N2*
dichloromethane

N  Param.: 17.90

sN Param.: 0.48
***Angew. Chem. Int. Ed. 2013, 52, 11900-11904
10.1002/anie.201305092
(S)-3,3-difluoro-2-phenyl-3,4-dihydro-2H-benzo[4,5]thiazolo[3,2-a]pyrimidine (in CH2Cl2)
C16H12F2N2S*
dichloromethane

N  Param.: 10.83

sN Param.: 0.80
***ARKIVOC 2024, (4), 202312093
10.24820/ark.5550190[...]
DBU (in MeCN)
C9H16N2*
MeCN

N  Param.: 15.29

sN Param.: 0.70
***Chem. Commun. 2008, , 1792-1794
10.1039/b801811a
DBN (in MeCN)
C7H12N2*
MeCN

N  Param.: 16.28

sN Param.: 0.67
***Chem. Commun. 2008, , 1792-1794
10.1039/b801811a
4-chloropyridine (in CH2Cl2)
C5H4ClN*
dichloromethane

N  Param.: 11.70

sN Param.: 0.67
*Chem. Eur. J. 2007, 13, 336-345
10.1002/chem.200600941
4-chloropyridine (in H2O)
C5H4ClN*
water

N  Param.: 10.50

sN Param.: 0.73
*Chem. Eur. J. 2007, 13, 336-345
10.1002/chem.200600941
pyridine (in CH2Cl2)
C5H5N*
dichloromethane

N  Param.: 12.90

sN Param.: 0.67
*Chem. Eur. J. 2007, 13, 336-345
10.1002/chem.200600941
pyridine (in H2O)
C5H5N*
water

N  Param.: 11.05

sN Param.: 0.73
***Chem. Eur. J. 2007, 13, 336-345
10.1002/chem.200600941
4-methylpyridine (in CH2Cl2)
C6H7N*
dichloromethane

N  Param.: 13.70

sN Param.: 0.67
*Chem. Eur. J. 2007, 13, 336-345
10.1002/chem.200600941
4-methylpyridine (in H2O)
C6H7N*
water

N  Param.: 11.10

sN Param.: 0.75
***Chem. Eur. J. 2007, 13, 336-345
10.1002/chem.200600941
4-methoxypyridine (in CH2Cl2)
C6H7NO*
dichloromethane

N  Param.: 13.70

sN Param.: 0.67
*Chem. Eur. J. 2007, 13, 336-345
10.1002/chem.200600941
4-methoxypyridine (in H2O)
C6H7NO*
water

N  Param.: 11.44

sN Param.: 0.68
***Chem. Eur. J. 2007, 13, 336-345
10.1002/chem.200600941
4-aminopyridine (in CH2Cl2)
C5H6N2*
dichloromethane

N  Param.: 15.20

sN Param.: 0.67
*Chem. Eur. J. 2007, 13, 336-345
10.1002/chem.200600941
4-aminopyridine (in H2O)
C5H6N2*
water

N  Param.: 12.19

sN Param.: 0.66
***Chem. Eur. J. 2007, 13, 336-345
10.1002/chem.200600941
4-(dimethylamino)pyridine (in CH2Cl2)
C7H10N2*
dichloromethane

N  Param.: 15.80

sN Param.: 0.66
***Chem. Eur. J. 2007, 13, 336-345
10.1002/chem.200600941
4-(dimethylamino)pyridine (in H2O)
C7H10N2*
water

N  Param.: 13.19

sN Param.: 0.56
***Chem. Eur. J. 2007, 13, 336-345
10.1002/chem.200600941
4-(dimethylamino)pyridine (in 91M9AN)
C7H10N2*
MeOH-MeCN mix

N  Param.: 13.20

sN Param.: 0.67
*Chem. Eur. J. 2007, 13, 336-345
10.1002/chem.200600941
4-(dimethylamino)pyridine (in DMSO)
C7H10N2*
DMSO

N  Param.: 14.80

sN Param.: 0.67
*Chem. Eur. J. 2007, 13, 336-345
10.1002/chem.200600941
4-(dimethylamino)pyridine (in DMF)
C7H10N2*
DMF

N  Param.: 14.90

sN Param.: 0.67
*Chem. Eur. J. 2007, 13, 336-345
10.1002/chem.200600941
4-pyrrolidinopyridine (in CH2Cl2)
C9H12N2*
dichloromethane

N  Param.: 15.90

sN Param.: 0.67
*Chem. Eur. J. 2007, 13, 336-345
10.1002/chem.200600941
4-pyrrolidinopyridine (in H2O)
C9H12N2*
water

N  Param.: 12.39

sN Param.: 0.66
***Chem. Eur. J. 2007, 13, 336-345
10.1002/chem.200600941
cyanate (in MeCN)
CNO-*
MeCN

N  Param.: 13.60

sN Param.: 0.84
***Chem. Eur. J. 2008, 14, 3866-3868
10.1002/chem.200800314
imidazole anion (in DMSO)
*
DMSO

N  Param.: 21.09

sN Param.: 0.51
***Chem. Eur. J. 2012, 18, 127-137
10.1002/chem.201102411
2-methyl-imidazole anion (in DMSO)
*
DMSO

N  Param.: 21.03

sN Param.: 0.50
***Chem. Eur. J. 2012, 18, 127-137
10.1002/chem.201102411
4-methyl-imidazole anion (in DMSO)
*
DMSO

N  Param.: 21.29

sN Param.: 0.51
***Chem. Eur. J. 2012, 18, 127-137
10.1002/chem.201102411
2,4-dimethyl-imidazole anion (in DMSO)
*
DMSO

N  Param.: 20.69

sN Param.: 0.60
***Chem. Eur. J. 2012, 18, 127-137
10.1002/chem.201102411
4-nitro-imidazole anion (in DMSO)
*
DMSO

N  Param.: 14.81

sN Param.: 0.71
***Chem. Eur. J. 2012, 18, 127-137
10.1002/chem.201102411
2-formyl-imidazole anion (in DMSO)
*
DMSO

N  Param.: 16.06

sN Param.: 0.68
***Chem. Eur. J. 2012, 18, 127-137
10.1002/chem.201102411