Mayr's Database of Reactivity Parameters

N-Nucleophiles

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Name Solvent Reactivity
Parameters
Classification Reference
(title or year)
cysteine (dianionic, in water, S-nucleophile!)
C3H5NO2S*
water

N  Param.: 23.43

sN Param.: 0.42
***Org. Biomol. Chem. 2007, 5, 3814-3820
10.1039/b713778h
trimethylamine (in MeCN)
*
MeCN

N  Param.: 23.05

sN Param.: 0.45
***J. Org. Chem. 2012, 77, 8142-8155
10.1021/jo301497g
(S)-4-benzyl-1,3-oxazolidin-2-one anion (in DMSO)
*
DMSO

N  Param.: 22.67

sN Param.: 0.54
***J. Org. Chem. 2010, 75, 5250-5258
10.1021/jo1009883
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
1,3-oxazolidin-2-one anion (in DMSO)
*
DMSO

N  Param.: 22.40

sN Param.: 0.59
***J. Org. Chem. 2010, 75, 5250-5258
10.1021/jo1009883
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
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
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
N-methyl-pyrrolidine (in CH2Cl2)
*
dichloromethane

N  Param.: 20.60

sN Param.: 0.52
*J. Phys. Org. Chem. 2010, 23, 1029-1035
10.1002/poc.1707
N-methyl-pyrrolidine (in MeCN)
*
MeCN

N  Param.: 20.59

sN Param.: 0.52
***J. Phys. Org. Chem. 2010, 23, 1029-1035
10.1002/poc.1707
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
azide ion (in DMSO)
N3-*
DMSO

N  Param.: 20.50

sN Param.: 0.59
***J. Phys. Org. Chem. 2006, 19, 706-713
10.1002/poc.1063
cyanamide anion (in DMSO)
*
DMSO

N  Param.: 20.33

sN Param.: 0.64
***J. Org. Chem. 2010, 75, 5250-5258
10.1021/jo1009883
4-pyridone anion (in MeCN)
*
MeCN

N  Param.: 20.22

sN Param.: 0.49
***J. Am. Chem. Soc. 2010, 132, 15380-15389
10.1021/ja106962u
2-pyridone anion (in MeCN)
*
MeCN

N  Param.: 20.11

sN Param.: 0.57
***J. Am. Chem. Soc. 2010, 132, 15380-15389
10.1021/ja106962u
prolinate (in MeCN)
C5H8NO2-*
MeCN

N  Param.: 19.95

sN Param.: 0.68
***J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
2-pyridone anion (in DMSO)
*
DMSO

N  Param.: 19.91

sN Param.: 0.60
***J. Am. Chem. Soc. 2010, 132, 15380-15389
10.1021/ja106962u
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
benzimidazole anion (in DMSO)
*
DMSO

N  Param.: 19.13

sN Param.: 0.55
***Chem. Eur. J. 2012, 18, 127-137
10.1002/chem.201102411
4-pyridone anion (in DMSO)
*
DMSO

N  Param.: 18.97

sN Param.: 0.62
***J. Am. Chem. Soc. 2010, 132, 15380-15389
10.1021/ja106962u
N-methyl-piperidine (in CH2Cl2)
*
dichloromethane

N  Param.: 18.90

sN Param.: 0.52
*J. Phys. Org. Chem. 2010, 23, 1029-1035
10.1002/poc.1707
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
N-methyl-piperidine (in MeCN)
*
MeCN

N  Param.: 18.72

sN Param.: 0.52
***J. Phys. Org. Chem. 2010, 23, 1029-1035
10.1002/poc.1707
methanesulfonamide anion (in DMSO)
*
DMSO

N  Param.: 18.61

sN Param.: 0.53
***J. Org. Chem. 2010, 75, 5250-5258
10.1021/jo1009883
pyrrolidine (inMeCN)
C4H9N*
MeCN

N  Param.: 18.58

sN Param.: 0.61
***J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
(S)-1-(pyrrolidin-2-ylmethyl)pyrrolidine
C9H18N2*
MeCN

N  Param.: 18.33

sN Param.: 0.64
***J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
perhydroazepine (in water)
C6H13N*
water

N  Param.: 18.29

sN Param.: 0.46
***J. Org. Chem. 2007, 72, 3679-3688
10.1021/jo062586z
piperidine (in water)
C5H11N*
water

N  Param.: 18.13

sN Param.: 0.44
***J. Org. Chem. 2007, 72, 3679-3688
10.1021/jo062586z
proline (anionic, in water)
C5H8NO2*
water

N  Param.: 18.08

sN Param.: 0.50
***Org. Biomol. Chem. 2007, 5, 3814-3820
10.1039/b713778h
adenine anion (in DMSO)
*
DMSO

N  Param.: 18.00

sN Param.: 0.55
***Chem. Eur. J. 2012, 18, 127-137
10.1002/chem.201102411
dimethylamine (in MeCN)
*
MeCN

N  Param.: 17.96

sN Param.: 0.63
***J. Org. Chem. 2012, 77, 8142-8155
10.1021/jo301497g
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
trimethylhydrazine (in MeCN)
*
MeCN

N  Param.: 17.75

sN Param.: 0.53
***Angew. Chem. Int. Ed. 2012, 51, 1353-1356
10.1002/anie.201107315
methylhydrazine (in MeCN)
*
MeCN

N  Param.: 17.73

sN Param.: 0.58
***J. Org. Chem. 2012, 77, 8142-8155
10.1021/jo301497g
2-Bn super-dmap (in MeCN)
*
MeCN

N  Param.: 17.69

sN Param.: 0.57
***Org. Lett. 2011, 13, 530-533
10.1021/ol1029589
thymine anion (in DMSO)
*
DMSO

N  Param.: 17.63

sN Param.: 0.62
***Chem. Eur. J. 2012, 18, 127-137
10.1002/chem.201102411
(S)-N,N-dimethylpyrrolidine-2-carboxamide
C7H14N2O*
MeCN

N  Param.: 17.61

sN Param.: 0.67
***J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
4,4-dimethyl-glutarimide anion (in DMSO)
*
DMSO

N  Param.: 17.52

sN Param.: 0.63
***J. Org. Chem. 2010, 75, 5250-5258
10.1021/jo1009883
hydantoin anion (in DMSO)
*
DMSO

N  Param.: 17.52

sN Param.: 0.55
***J. Org. Chem. 2010, 75, 5250-5258
10.1021/jo1009883
(S)-1-(3,5-bis(trifluoromethyl)phenyl)-3-(pyrrolidin-2-ylmethyl)urea
C14H15F6N3O*
MeCN

N  Param.: 17.50

sN Param.: 0.64
***J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
2-benzylpyrrolidine
C11H15N*
MeCN

N  Param.: 17.43

sN Param.: 0.66
***J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
(S)-N,N-dimethyl-1-(pyrrolidin-2-yl)methanamine
C7H16N2*
MeCN

N  Param.: 17.41

sN Param.: 0.68
***J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
piperidine (in MeCN)
*
MeCN

N  Param.: 17.35

sN Param.: 0.68
***Eur. J. Org. Chem. 2009, , 6379-6385
10.1002/ejoc.200900925
triethylamine (in CH2Cl2)
*
dichloromethane

N  Param.: 17.30

sN Param.: 0.52
*J. Phys. Org. Chem. 2010, 23, 1029-1035
10.1002/poc.1707
(S)-pyrrolidin-2-ylmethanamine
C5H12N2*
MeCN

N  Param.: 17.24

sN Param.: 0.67
***J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
methylhydrazine (in water)
*
water

N  Param.: 17.23

sN Param.: 0.45
***J. Org. Chem. 2012, 77, 8142-8155
10.1021/jo301497g
piperazine (in water)
C4H10N2*
water

N  Param.: 17.22

sN Param.: 0.50
***J. Org. Chem. 2007, 72, 3679-3688
10.1021/jo062586z
pyrrolidine (in water)
C4H9N*
water

N  Param.: 17.21

sN Param.: 0.49
***J. Org. Chem. 2007, 72, 3679-3688
10.1021/jo062586z
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
piperidine (in DMSO)
C5H11N*
DMSO

N  Param.: 17.19

sN Param.: 0.71
***J. Am. Chem. Soc. 2003, 125, 286-295
10.1021/ja021010y
p-toluenesulfonamide anion (in DMSO)
*
DMSO

N  Param.: 17.14

sN Param.: 0.60
***J. Org. Chem. 2010, 75, 5250-5258
10.1021/jo1009883
dimethylamine (in water)
C2H7N*
water

N  Param.: 17.12

sN Param.: 0.50
***J. Org. Chem. 2007, 72, 3679-3688
10.1021/jo062586z
triethylamine (in MeCN)
*
MeCN

N  Param.: 17.10

sN Param.: 0.52
*J. Phys. Org. Chem. 2010, 23, 1029-1035
10.1002/poc.1707
azide ion (in 91iPr9AN)
N3-*
iPrOH-MeCN mix

N  Param.: 17.07

sN Param.: 0.71
***J. Phys. Org. Chem. 2006, 19, 706-713
10.1002/poc.1063
uracil anion (in DMSO)
*
DMSO

N  Param.: 17.04

sN Param.: 0.63
***Chem. Eur. J. 2012, 18, 127-137
10.1002/chem.201102411
morpholine (in DMSO)
C4H9NO*
DMSO

N  Param.: 16.96

sN Param.: 0.67
***J. Am. Chem. Soc. 2003, 125, 286-295
10.1021/ja021010y
2-Et super-dmap (in MeCN)
*
MeCN

N  Param.: 16.81

sN Param.: 0.60
***Org. Lett. 2011, 13, 530-533
10.1021/ol1029589
N-methyl-morpholine (in MeCN)
*
MeCN

N  Param.: 16.80

sN Param.: 0.52
*J. Phys. Org. Chem. 2010, 23, 1029-1035
10.1002/poc.1707
1-methyl-2-phenylpyrrolidine (in CH2Cl2)
C11H15N*
dichloromethane

N  Param.: 16.80

sN Param.: 0.49
***J. Phys. Org. Chem. 2016, 29, 759-767
10.1002/poc.3580
2-methylpyrrolidine (in MeCN)
C5H11N*
MeCN

N  Param.: 16.78

sN Param.: 0.71
***J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
(S)-pyrrolidin-2-ylmethanol
C5H11NO*
MeCN

N  Param.: 16.74

sN Param.: 0.67
***J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
azide ion (in 91nPr9AN)
N3-*
nPrOH-MeCN mix

N  Param.: 16.70

sN Param.: 0.73
***J. Phys. Org. Chem. 2006, 19, 706-713
10.1002/poc.1063
2-Me super-dmap (in MeCN)
*
MeCN

N  Param.: 16.65

sN Param.: 0.58
***Org. Lett. 2011, 13, 530-533
10.1021/ol1029589
(S)-2-benzhydrylpyrrolidine
C17H19N*
MeCN

N  Param.: 16.61

sN Param.: 0.67
***J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
N-methyl-morpholine (in CH2Cl2)
*
dichloromethane

N  Param.: 16.50

sN Param.: 0.52
*J. Phys. Org. Chem. 2010, 23, 1029-1035
10.1002/poc.1707
(R)-2-isopropyl-3,4-dihydro-2H-benzo[4,5]thiazolo[3,2-a]pyrimidine
*
dichloromethane

N  Param.: 16.50

sN Param.: 0.48
***J. Org. Chem. 2011, 76, 5104-5112
10.1021/jo200803x
(S)-2-(methoxymethyl)pyrrolidine
C6H13NO*
MeCN

N  Param.: 16.50

sN Param.: 0.71
***J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
hydrazine (in MeCN)
*
MeCN

N  Param.: 16.45

sN Param.: 0.56
***Angew. Chem. Int. Ed. 2012, 51, 1353-1356
10.1002/anie.201107315
(R)-2-isopropylpyrrolidine
C7H15N*
MeCN

N  Param.: 16.44

sN Param.: 0.71
***J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
4-formyl-imidazole anion (in DMSO)
*
DMSO

N  Param.: 16.40

sN Param.: 0.67
***Chem. Eur. J. 2012, 18, 127-137
10.1002/chem.201102411
1-methyl uracil anion (in DMSO)
*
DMSO

N  Param.: 16.36

sN Param.: 0.69
***Chem. Eur. J. 2012, 18, 127-137
10.1002/chem.201102411
azide ion (in 91E9AN)
N3-*
EtOH-MeCN mix

N  Param.: 16.30

sN Param.: 0.73
***J. Phys. Org. Chem. 2006, 19, 706-713
10.1002/poc.1063
benzotriazole anion (in DMSO)
*
DMSO

N  Param.: 16.29

sN Param.: 0.65
***Chem. Eur. J. 2012, 18, 127-137
10.1002/chem.201102411
DBN (in MeCN)
C7H12N2*
MeCN

N  Param.: 16.28

sN Param.: 0.67
***Chem. Commun. 2008, , 1792-1794
10.1039/b801811a
(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
2,3,4,6,7,8-hexahydro-1H-pyrimido[1,2-a]pyrimidine
C7H13N3*
dichloromethane

N  Param.: 16.16

sN Param.: 0.75
***ChemCatChem 2012, 4, 993-999
10.1002/cctc.201200143
1,2,3,5,6,7-hexahydroimidazo[1,2-a]pyrimidine (TBN)
C6H11N3*
dichloromethane

N  Param.: 16.15

sN Param.: 0.73
***ChemCatChem 2012, 4, 993-999
10.1002/cctc.201200143
1,2-dimethylhydrazine (in MeCN)
*
MeCN

N  Param.: 16.15

sN Param.: 0.68
***J. Org. Chem. 2012, 77, 8142-8155
10.1021/jo301497g
DBU (in THF)
*
THF

N  Param.: 16.12

sN Param.: 0.67
***Angew. Chem. Int. Ed. 2011, 50, 6915-6919
10.1002/anie.201102435
ethanolamine (in DMSO)
*
DMSO

N  Param.: 16.07

sN Param.: 0.61
***J. Am. Chem. Soc. 2009, 131, 11392-11401
10.1021/ja903207b
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
diacetamide anion (in DMSO)
*
DMSO

N  Param.: 16.05

sN Param.: 0.70
***J. Org. Chem. 2010, 75, 5250-5258
10.1021/jo1009883
succinimide anion (in DMSO)
*
DMSO

N  Param.: 16.03

sN Param.: 0.66
***J. Org. Chem. 2010, 75, 5250-5258
10.1021/jo1009883
ethyl N-acetylcarbamate anion (in DMSO)
*
DMSO

N  Param.: 15.99

sN Param.: 0.70
***J. Org. Chem. 2010, 75, 5250-5258
10.1021/jo1009883
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
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-(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
(S)-2-(pyrrolidin-2-ylmethyl)isoindoline-1,3-dione
C13H14N2O2*
MeCN

N  Param.: 15.90

sN Param.: 0.77
***J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
trifluoroacetamide anion (in DMSO)
*
DMSO

N  Param.: 15.81

sN Param.: 0.64
***J. Org. Chem. 2010, 75, 5250-5258
10.1021/jo1009883
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
n-propylamine (in DMSO)
C3H9N*
DMSO

N  Param.: 15.70

sN Param.: 0.64
***J. Am. Chem. Soc. 2003, 125, 286-295
10.1021/ja021010y
N-methyl-trifluoroacetamide anion (in DMSO)
*
DMSO

N  Param.: 15.70

sN Param.: 0.71
***J. Org. Chem. 2010, 75, 5250-5258
10.1021/jo1009883
1-methyl-2-phenylpyrrolidine (in MeCN)
C11H15N*
MeCN

N  Param.: 15.70

sN Param.: 0.54
***J. Phys. Org. Chem. 2016, 29, 759-767
10.1002/poc.3580
N',N'-dimethylformohydrazide (in MeCN)
*
MeCN

N  Param.: 15.69

sN Param.: 0.51
***J. Org. Chem. 2012, 77, 8142-8155
10.1021/jo301497g
2-(naphthylmethyl)quinuclidine (in MeCN)
*
MeCN

N  Param.: 15.66

sN Param.: 0.62
***J. Org. Chem. 2009, 74, 7157-7164
10.1021/jo901670w
morpholine (in MeCN)
*
MeCN

N  Param.: 15.65

sN Param.: 0.74
***Eur. J. Org. Chem. 2009, , 6379-6385
10.1002/ejoc.200900925
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 water)
C4H9NO*
water

N  Param.: 15.62

sN Param.: 0.54
***J. Org. Chem. 2007, 72, 3679-3688
10.1021/jo062586z
TCAP (in MeCN)
C11H14N2*
MeCN

N  Param.: 15.60

sN Param.: 0.68
***Chem. Eur. J. 2013, 19, 6435-6442
10.1002/chem.201204452