Mayr's Database of Reactivity Parameters

N-Nucleophiles

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Name Solvent Reactivity
Parameters
Classification Reference
(title or year)
methionine (anionic, in water)
C5H10NO2S *
water

N  Param.: 13.16

sN Param.: 0.58
*** Org. Biomol. Chem. 2007, 5, 3814-3820
10.1039/b713778h
methyl glycinate (in water)
C3H7NO2 *
water

N  Param.: 12.08

sN Param.: 0.60
*** 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
methylamine (in MeCN)
*
MeCN

N  Param.: 15.19

sN Param.: 0.68
*** J. Org. Chem. 2012, 77, 8142-8155
10.1021/jo301497g
methylamine (in water)
CH5N *
water

N  Param.: 13.85

sN Param.: 0.53
*** J. Org. Chem. 2007, 72, 3679-3688
10.1021/jo062586z
methylhydrazine (in MeCN)
*
MeCN

N  Param.: 17.73

sN Param.: 0.58
*** J. Org. Chem. 2012, 77, 8142-8155
10.1021/jo301497g
methylhydrazine (in water)
*
water

N  Param.: 17.23

sN Param.: 0.45
*** J. Org. Chem. 2012, 77, 8142-8155
10.1021/jo301497g
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
morpholine (in DMSO)
C4H9NO *
DMSO

N  Param.: 16.96

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

N  Param.: 15.65

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

N  Param.: 15.62

sN Param.: 0.54
*** J. Org. Chem. 2007, 72, 3679-3688
10.1021/jo062586z
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-(1,3-dimethylimidazolidin-2-ylidene)-1-phenylmethanamine
C12H17N3 *
dichloromethane

N  Param.: 14.00

sN Param.: 0.70
*** ChemCatChem 2012, 4, 993-999
10.1002/cctc.201200143
N-(phenylmethyl)propan-2-imine (in CH2Cl2)
C10H13N *
dichloromethane

N  Param.: 11.13

sN Param.: 0.73
*** Z. Naturforsch. B 2013, 68b, 693-699
10.5560/ZNB.2013-3085
n-butylamine (in MeCN)
*
MeCN

N  Param.: 15.27

sN Param.: 0.63
*** Eur. J. Org. Chem. 2009, , 6379-6385
10.1002/ejoc.200900925
N-methyl-1-phenylmethanimine (in CH2Cl2)
C8H9N *
dichloromethane

N  Param.: 8.60

sN Param.: 0.77
*** Z. Naturforsch. B 2013, 68b, 693-699
10.5560/ZNB.2013-3085
N-methyl-glycinenitrile (in water)
C3H6N2 *
water

N  Param.: 13.50

sN Param.: 0.59
*** J. Org. Chem. 2007, 72, 3679-3688
10.1021/jo062586z
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
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
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
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
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
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
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
N-methylhydroxylamine (in MeCN)
*
MeCN

N  Param.: 14.10

sN Param.: 0.76
*** J. Org. Chem. 2012, 77, 8142-8155
10.1021/jo301497g
N-phenylcyclohexanimine (in CH2Cl2)
C12H15N *
dichloromethane

N  Param.: 8.80

sN Param.: 1.00
*** Z. Naturforsch. B 2013, 68b, 693-699
10.5560/ZNB.2013-3085
N-phenylpropan-2-imine (in CH2Cl2)
C9H11N *
dichloromethane

N  Param.: 9.53

sN Param.: 0.85
*** Z. Naturforsch. B 2013, 68b, 693-699
10.5560/ZNB.2013-3085
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
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-propylamine (in MeCN)
*
MeCN

N  Param.: 15.11

sN Param.: 0.63
*** Eur. J. Org. Chem. 2009, , 6379-6385
10.1002/ejoc.200900925
n-propylamine (in water)
C3H9N *
water

N  Param.: 13.33

sN Param.: 0.56
*** J. Am. Chem. Soc. 2003, 125, 286-295
10.1021/ja021010y
nicotine (in CH2Cl2)
C10H14N2 *
dichloromethane

N  Param.: 10.40

sN Param.: 1.04
*** J. Phys. Org. Chem. 2016, 29, 759-767
10.1002/poc.3580
nicotine (in MeCN)
C10H14N2 *
MeCN

N  Param.: 11.60

sN Param.: 0.81
*** J. Phys. Org. Chem. 2016, 29, 759-767
10.1002/poc.3580
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
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
p-toluenesulfonamide anion (in DMSO)
*
DMSO

N  Param.: 17.14

sN Param.: 0.60
*** J. Org. Chem. 2010, 75, 5250-5258
10.1021/jo1009883
p-toluidine (in MeCN)
C7H9N *
MeCN

N  Param.: 13.19

sN Param.: 0.69
*** J. Org. Chem. 2007, 72, 3679-3688
10.1021/jo062586z
p-toluidine (in water)
C7H9N *
water

N  Param.: 13.00

sN Param.: 0.79
*** J. Org. Chem. 2007, 72, 3679-3688
10.1021/jo062586z
perhydroazepine (in water)
C6H13N *
water

N  Param.: 18.29

sN Param.: 0.46
*** J. Org. Chem. 2007, 72, 3679-3688
10.1021/jo062586z
phenylalanine (anionic, in water)
C9H10NO2 *
water

N  Param.: 14.12

sN Param.: 0.53
*** Org. Biomol. Chem. 2007, 5, 3814-3820
10.1039/b713778h
phthalimide anion (in DMSO)
*
DMSO

N  Param.: 15.52

sN Param.: 0.67
*** J. Org. Chem. 2010, 75, 5250-5258
10.1021/jo1009883
piperazine (in water)
C4H10N2 *
water

N  Param.: 17.22

sN Param.: 0.50
*** 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
piperidine (in DMSO)
C5H11N *
DMSO

N  Param.: 17.19

sN Param.: 0.71
*** J. Am. Chem. Soc. 2003, 125, 286-295
10.1021/ja021010y
piperidine (in MeCN)
*
MeCN

N  Param.: 17.35

sN Param.: 0.68
*** Eur. J. Org. Chem. 2009, , 6379-6385
10.1002/ejoc.200900925
piperidine (in water)
C5H11N *
water

N  Param.: 18.13

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

N  Param.: 18.08

sN Param.: 0.50
*** Org. Biomol. Chem. 2007, 5, 3814-3820
10.1039/b713778h