Mayr's Database of Reactivity Parameters

N-Nucleophiles

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Name Solvent Reactivity
Parameters
Classification Reference
(title or year)
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
diethylamine (in water)
C4H11N *
water

N  Param.: 14.68

sN Param.: 0.53
*** J. Org. Chem. 2007, 72, 3679-3688
10.1021/jo062586z
methyl L-prolinate
C6H11NO2 *
MeCN

N  Param.: 14.75

sN Param.: 0.82
*** J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
4-pyridone anion (in water)
*
water

N  Param.: 14.76

sN Param.: 0.48
*** J. Am. Chem. Soc. 2010, 132, 15380-15389
10.1021/ja106962u
9-Me-HyperBTM
C20H22N2S *
dichloromethane

N  Param.: 14.76

sN Param.: 0.67
*** ChemistryEurope 2026, 4, e202500434
10.1002/ceur.202500434
theophylline anion (in DMSO)
*
DMSO

N  Param.: 14.78

sN Param.: 0.71
*** Chem. Eur. J. 2012, 18, 127-137
10.1002/chem.201102411
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-(morpholino)pyridine (in MeCN)
*
MeCN

N  Param.: 14.80

sN Param.: 0.63
*** J. Phys. Chem. A 2012, 116, 8494-8499
10.1021/jp3049247
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
maleimide anion (in DMSO)
*
DMSO

N  Param.: 14.87

sN Param.: 0.76
*** J. Org. Chem. 2010, 75, 5250-5258
10.1021/jo1009883
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
7-MeO-HyperBTM (in CH2Cl2)
C20H22N2OS *
dichloromethane

N  Param.: 14.95

sN Param.: 2.67
*** ChemistryEurope 2026, 4, e202500434
10.1002/ceur.202500434
HyperBTM (in CH2Cl2)
C19H20N2S *
dichloromethane

N  Param.: 14.96

sN Param.: 0.64
*** J. Org. Chem. 2011, 76, 5104-5112
10.1021/jo200803x
(S)-1-(3,5-bis(trifluoromethyl)phenyl)-3-(pyrrolidin-2-ylmethyl)thiourea
C14H15F6N3S *
MeCN

N  Param.: 14.97

sN Param.: 0.69
*** J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
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
azide ion (in 45M55AN)
N3- *
MeOH-MeCN mix

N  Param.: 15.01

sN Param.: 0.80
*** J. Phys. Org. Chem. 2006, 19, 706-713
10.1002/poc.1063
purine anion (in DMSO)
*
DMSO

N  Param.: 15.03

sN Param.: 0.77
*** Chem. Eur. J. 2012, 18, 127-137
10.1002/chem.201102411
diethylamine (in MeCN)
*
MeCN

N  Param.: 15.10

sN Param.: 0.73
*** Eur. J. Org. Chem. 2009, , 6379-6385
10.1002/ejoc.200900925
n-propylamine (in MeCN)
*
MeCN

N  Param.: 15.11

sN Param.: 0.63
*** Eur. J. Org. Chem. 2009, , 6379-6385
10.1002/ejoc.200900925
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
methylamine (in MeCN)
*
MeCN

N  Param.: 15.19

sN Param.: 0.68
*** J. Org. Chem. 2012, 77, 8142-8155
10.1021/jo301497g
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
(S)-N-propylpyrrolidine-2-carboxamide
C8H16N2O *
MeCN

N  Param.: 15.20

sN Param.: 0.73
*** J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
2-methyl-1,4,5,6-tetrahydropyrimidine (in CH2Cl2)
C5H10N2 *
dichloromethane

N  Param.: 15.21

sN Param.: 0.69
*** Eur. J. Org. Chem. 2013, , 3369-3377
10.1002/ejoc.201300213
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
n-butylamine (in MeCN)
*
MeCN

N  Param.: 15.27

sN Param.: 0.63
*** Eur. J. Org. Chem. 2009, , 6379-6385
10.1002/ejoc.200900925
benzylamine (in DMSO)
*
DMSO

N  Param.: 15.28

sN Param.: 0.65
*** J. Am. Chem. Soc. 2009, 131, 11392-11401
10.1021/ja903207b
DBU (in MeCN)
C9H16N2 *
MeCN

N  Param.: 15.29

sN Param.: 0.70
*** Chem. Commun. 2008, , 1792-1794
10.1039/b801811a
(R)-2-benzhydryl-3,4-dihydro-2H-benzo[4,5]thiazolo[3,2-a]pyrimidine
*
dichloromethane

N  Param.: 15.30

sN Param.: 0.55
*** J. Org. Chem. 2011, 76, 5104-5112
10.1021/jo200803x
(S)-4-phenyl-1-(pyrrolidin-2-ylmethyl)-1H-1,2,3-triazole
C13H16N4 *
MeCN

N  Param.: 15.32

sN Param.: 0.72
*** J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
2-Ac super-dmap (in MeCN)
*
MeCN

N  Param.: 15.39

sN Param.: 0.60
*** Org. Lett. 2011, 13, 530-533
10.1021/ol1029589
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
(S)-2-(azidomethyl)pyrrolidine
C5H10N4 *
MeCN

N  Param.: 15.43

sN Param.: 0.73
*** J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
1-aminopropan-2-ol (in DMSO)
*
DMSO

N  Param.: 15.47

sN Param.: 0.65
*** J. Am. Chem. Soc. 2009, 131, 11392-11401
10.1021/ja903207b
DBN (in CH2Cl2)
*
dichloromethane

N  Param.: 15.50

sN Param.: 0.76
*** ChemCatChem 2012, 4, 993-999
10.1002/cctc.201200143
4-(dimethylamino)pyridine (in MeCN)
C7H10N2 *
MeCN

N  Param.: 15.51

sN Param.: 0.62
*** J. Phys. Chem. A 2012, 116, 8494-8499
10.1021/jp3049247
diethanolamine (in DMSO)
*
DMSO

N  Param.: 15.51

sN Param.: 0.70
*** J. Am. Chem. Soc. 2009, 131, 11392-11401
10.1021/ja903207b
phthalimide anion (in DMSO)
*
DMSO

N  Param.: 15.52

sN Param.: 0.67
*** J. Org. Chem. 2010, 75, 5250-5258
10.1021/jo1009883
(S)-1-(pyrrolidin-2-ylmethyl)-1H-imidazole
C8H13N3 *
MeCN

N  Param.: 15.55

sN Param.: 0.69
*** 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
morpholine (in water)
C4H9NO *
water

N  Param.: 15.62

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

N  Param.: 15.65

sN Param.: 0.74
*** Eur. J. Org. Chem. 2009, , 6379-6385
10.1002/ejoc.200900925
2-(naphthylmethyl)quinuclidine (in MeCN)
*
MeCN

N  Param.: 15.66

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

N  Param.: 15.69

sN Param.: 0.51
*** J. Org. Chem. 2012, 77, 8142-8155
10.1021/jo301497g
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
8-MeO-HyperBTM
C20H22N2OS *
dichloromethane

N  Param.: 15.70

sN Param.: 0.63
*** ChemistryEurope 2026, 4, e202500434
10.1002/ceur.202500434