Mayr's Database of Reactivity Parameters

Nucleophiles

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Name Solvent Reactivity
Parameters
Classification Reference
(title or year)
7,8,9-(MeO)3-HyperBTM
C22H26N2O3S *
dichloromethane

N  Param.: 14.62

sN Param.: 0.67
*** ChemistryEurope 2026, 4, e202500434
10.1002/ceur.202500434
7-azaindole
C7H6N2 *
MeCN

N  Param.: 3.87

sN Param.: 1.10
* J. Org. Chem. 2006, 71, 9088-9095
10.1021/jo0614339
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
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-Ms-HyperBTM
C20H22N2O2S2 *
dichloromethane

N  Param.: 12.52

sN Param.: 0.75
*** 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
8-(benzyloxy)-2,2-di-tert-butyl-4,4a,8,8a-tetrahydropyrano[3,2-d][1,3,2]dioxasiline
C21H32O4Si *
dichloromethane

N  Param.: 1.85

sN Param.: 1.28
*** Angew. Chem. Int. Ed. 2026, 65, e24329
10.1002/anie.202524329
8-(benzyloxy)-2-phenyl-4,4a,8,8a-tetrahydropyrano[3,2-d][1,3]dioxine
C20H20O4 *
dichloromethane

N  Param.: 1.94

sN Param.: 1.24
*** Angew. Chem. Int. Ed. 2026, 65, e24329
10.1002/anie.202524329
8-MeO-HyperBTM
C20H22N2OS *
dichloromethane

N  Param.: 15.70

sN Param.: 0.63
*** ChemistryEurope 2026, 4, e202500434
10.1002/ceur.202500434
80% ethanol/20% MeCN (v/v)
C2H6O *
EtOH-MeCN mix

N  Param.: 6.94

sN Param.: 0.90
*** J. Am. Chem. Soc. 2004, 126, 5174-5181
10.1021/ja031828z
80% methanol/20% MeCN (v/v)
CH4O *
MeOH-MeCN mix

N  Param.: 7.20

sN Param.: 0.89
*** J. Am. Chem. Soc. 2004, 126, 5174-5181
10.1021/ja031828z
80% water/20% MeCN (v/v)
H2O *
water-MeCN mix

N  Param.: 5.04

sN Param.: 0.89
*** J. Am. Chem. Soc. 2004, 126, 5174-5181
10.1021/ja031828z
80% water/20%EtOH (v/v)
*
water-EtOH mix

N  Param.: 5.54

sN Param.: 0.94
*** J. Am. Chem. Soc. 2004, 126, 5174-5181
10.1021/ja031828z
80% water/20%TFE (v/v)
H2O *
water-TFE mix

N  Param.: 4.78

sN Param.: 0.83
*** J. Am. Chem. Soc. 2004, 126, 5174-5181
10.1021/ja031828z
9,10-dihydroanthracene
C14H12 *
dichloromethane

N  Param.: -0.86

sN Param.: 0.92
*** J. Am. Chem. Soc. 2002, 124, 4076-4083
10.1021/ja0121538
9-Me-HyperBTM
C20H22N2S *
dichloromethane

N  Param.: 14.76

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-methyl guanine anion (in water)
*
water

N  Param.: 10.77

sN Param.: 0.65
*** Chem. Eur. J. 2012, 18, 127-137
10.1002/chem.201102411
90% water/10%EtOH (v/v)
*
water-EtOH mix

N  Param.: 5.38

sN Param.: 0.91
*** J. Am. Chem. Soc. 2004, 126, 5174-5181
10.1021/ja031828z
90% water/10%TFE (v/v)
H2O *
water-TFE mix

N  Param.: 5.04

sN Param.: 0.90
*** J. Am. Chem. Soc. 2004, 126, 5174-5181
10.1021/ja031828z
91% ethanol/9% MeCN (v/v)
C2H6O *
EtOH-MeCN mix

N  Param.: 7.10

sN Param.: 0.90
*** J. Am. Chem. Soc. 2004, 126, 5174-5181
10.1021/ja031828z
91% methanol/9% MeCN (v/v)
CH4O *
MeOH-MeCN mix

N  Param.: 7.45

sN Param.: 0.87
*** J. Am. Chem. Soc. 2004, 126, 5174-5181
10.1021/ja031828z
91% n-propanol/9% MeCN (v/v)
C3H8O *
nPrOH-MeCN mix

N  Param.: 7.05

sN Param.: 0.80
*** Can. J. Chem. 2005, 83, 1554-1560
10.1139%2Fv05-170
91% propan-2-ol/9% MeCN (v/v)
C3H8O *
iPrOH-MeCN mix

N  Param.: 6.49

sN Param.: 0.96
*** Can. J. Chem. 2005, 83, 1554-1560
10.1139%2Fv05-170
91% water/9% MeCN (v/v)
H2O *
water-MeCN mix

N  Param.: 5.16

sN Param.: 0.91
*** J. Am. Chem. Soc. 2004, 126, 5174-5181
10.1021/ja031828z
acetate (in 80A20W)
*
aq acetone

N  Param.: 12.50

sN Param.: 0.60
** J. Am. Chem. Soc. 2008, 130, 3012-3022
10.1021/ja0765464
acetate (in 90A10W)
*
aq acetone

N  Param.: 12.71

sN Param.: 0.68
*** J. Am. Chem. Soc. 2008, 130, 3012-3022
10.1021/ja0765464
acetate (in MeCN)
*
MeCN

N  Param.: 16.90

sN Param.: 0.75
*** J. Am. Chem. Soc. 2008, 130, 3012-3022
10.1021/ja0765464
acetonitrile (in MeCN)
*
MeCN

N  Param.: 2.23

sN Param.: 0.84
*** J. Am. Chem. Soc. 2012, 134, 13902-13911
10.1021/ja306522b
adenine anion (in DMSO)
*
DMSO

N  Param.: 18.00

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

N  Param.: 10.93

sN Param.: 0.62
*** Chem. Eur. J. 2012, 18, 127-137
10.1002/chem.201102411
alanine (anionic, in water)
C3H6NO2 *
water

N  Param.: 13.01

sN Param.: 0.58
*** Org. Biomol. Chem. 2007, 5, 3814-3820
10.1039/b713778h
allyl-tert.butyl-dimethylsilane
C9H20Si *
dichloromethane

N  Param.: 1.80

sN Param.: 0.95
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
allylamine (in MeCN)
*
MeCN

N  Param.: 14.37

sN Param.: 0.66
*** Eur. J. Org. Chem. 2009, , 6379-6385
10.1002/ejoc.200900925
allylamine (in water)
C3H7N *
water

N  Param.: 13.21

sN Param.: 0.54
*** J. Org. Chem. 2007, 72, 3679-3688
10.1021/jo062586z
allylbenzene
C9H10 *
dichloromethane

N  Param.: -4.12

sN Param.: 0.97
* J. Am. Chem. Soc. 2002, 124, 4076-4083
10.1021/ja0121538
allylchlorodimethylsilane
C5H11ClSi *
dichloromethane

N  Param.: -0.57

sN Param.: 1.06
***** J. Am. Chem. Soc. 2012, 134, 13902-13911
10.1021/ja306522b
allyltri-n-butylsilane
C15H32Si *
dichloromethane

N  Param.: 2.09

sN Param.: 0.95
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
allyltributylstannane
C15H32Sn *
dichloromethane

N  Param.: 5.46

sN Param.: 0.89
***** J. Am. Chem. Soc. 2001, 123, 9500-9512
10.1021/ja010890y
allyltriethylsilane
C9H20Si *
dichloromethane

N  Param.: 1.93

sN Param.: 0.95
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
allyltrihexylsilane
C21H44Si *
dichloromethane

N  Param.: 2.11

sN Param.: 0.95
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
allyltriisopropylsilane
C12H26Si *
dichloromethane

N  Param.: 2.04

sN Param.: 0.95
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
allyltrimethylsilane
C6H14Si *
dichloromethane

N  Param.: 1.68

sN Param.: 1.00
***** J. Am. Chem. Soc. 2012, 134, 13902-13911
10.1021/ja306522b
allyltriphenylgermane
C21H20Ge *
dichloromethane

N  Param.: 1.20

sN Param.: 0.90
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
allyltriphenylsilane
C21H20Si *
dichloromethane

N  Param.: -0.13

sN Param.: 1.21
***** J. Am. Chem. Soc. 2001, 123, 9500-9512
10.1021/ja010890y
allyltriphenylstannane
C21H20Sn *
dichloromethane

N  Param.: 3.09

sN Param.: 0.90
***** J. Am. Chem. Soc. 2001, 123, 9500-9512
10.1021/ja010890y
allyltris(trimethylsilyl)silane
*
dichloromethane

N  Param.: 1.95

sN Param.: 0.98
*** Org. Lett. 2010, 12, 5206-5209
10.1021/ol102220e
alpha-(N-morpholino)styrene
C12H15NO *
dichloromethane

N  Param.: 9.96

sN Param.: 0.79
*** Chem. Eur. J. 2003, 9, 2209-2218
10.1002/chem.200204666
alpha-(N-morpholino)styrene (in MeCN)
C12H15NO *
MeCN

N  Param.: 10.30

sN Param.: 0.80
* Chem. Eur. J. 2018, 24, 5901-5910
10.1002/chem.201705962
alpha-(N-piperidino)styrene (in MeCN)
C13H17N *
MeCN

N  Param.: 11.60

sN Param.: 0.80
* Chem. Eur. J. 2018, 24, 5901-5910
10.1002/chem.201705962
alpha-(pentamethyldisilyl)styrene
C13H22Si2 *
dichloromethane

N  Param.: 0.61

sN Param.: 1.01
*** Chem. Eur. J. 2014, 20, 1103-1110
10.1002/chem.201303215
alpha-(trimethylsilyl)styrene
C11H16Si *
dichloromethane

N  Param.: -1.13

sN Param.: 1.46
*** Chem. Eur. J. 2014, 20, 1103-1110
10.1002/chem.201303215
alpha-methylstyrene
C9H10 *
dichloromethane

N  Param.: 2.35

sN Param.: 1.00
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
ammonia (in MeCN)
*
MeCN

N  Param.: 11.39

sN Param.: 0.69
*** J. Org. Chem. 2012, 77, 8142-8155
10.1021/jo301497g
ammonia (in water)
H3N *
water

N  Param.: 9.48

sN Param.: 0.59
*** J. Org. Chem. 2007, 72, 3679-3688
10.1021/jo062586z
aniline (in MeCN)
C6H7N *
MeCN

N  Param.: 12.64

sN Param.: 0.68
*** J. Org. Chem. 2007, 72, 3679-3688
10.1021/jo062586z
aniline (in water)
C6H7N *
water

N  Param.: 12.99

sN Param.: 0.73
*** J. Org. Chem. 2007, 72, 3679-3688
10.1021/jo062586z
anion of (3-nitrophenyl)nitromethane (in 91M9AN)
C7H5N2O4- *
MeOH-MeCN mix

N  Param.: 14.75

sN Param.: 0.71
*** Eur. J. Org. Chem. 2006, , 2530-2537
10.1002/ejoc.200500769
anion of (3-nitrophenyl)nitromethane (in DMSO)
C7H5N2O4- *
DMSO

N  Param.: 18.06

sN Param.: 0.71
*** J. Org. Chem. 2004, 69, 7565-7576
10.1021/jo048773j
anion of (3-nitrophenyl)nitromethane (in water)
C7H5N2O4- *
water

N  Param.: 14.25

sN Param.: 0.46
*** J. Org. Chem. 2004, 69, 7565-7576
10.1021/jo048773j
anion of (4-CF3-C6H4)CH2SO2Ph (in DMSO)
C14H10F3O2S- *
DMSO

N  Param.: 24.30

sN Param.: 0.51
*** Org. Biomol. Chem. 2008, 6, 3052-3058
10.1039/b805604h
anion of (4-CN-C6H4)CH2SO2Ph (in DMSO)
C14H10NO2S- *
DMSO

N  Param.: 22.60

sN Param.: 0.57
*** Org. Biomol. Chem. 2008, 6, 3052-3058
10.1039/b805604h
anion of (4-cyanophenyl)nitromethane (in 91M9AN)
C8H5N2O2- *
MeOH-MeCN mix

N  Param.: 13.92

sN Param.: 0.74
*** Eur. J. Org. Chem. 2006, , 2530-2537
10.1002/ejoc.200500769
anion of (4-cyanophenyl)nitromethane (in DMSO)
C8H5N2O2- *
DMSO

N  Param.: 16.96

sN Param.: 0.73
*** J. Org. Chem. 2004, 69, 7565-7576
10.1021/jo048773j
anion of (4-cyanophenyl)nitromethane (in water)
C8H5N2O2- *
water

N  Param.: 13.23

sN Param.: 0.52
*** J. Org. Chem. 2004, 69, 7565-7576
10.1021/jo048773j
anion of (4-nitrophenyl)nitromethane (in 91M9AN)
C7H5N2O4- *
MeOH-MeCN mix

N  Param.: 14.05

sN Param.: 0.72
*** Eur. J. Org. Chem. 2006, , 2530-2537
10.1002/ejoc.200500769
anion of (4-nitrophenyl)nitromethane (in DMSO)
C7H5N2O4- *
DMSO

N  Param.: 16.29

sN Param.: 0.75
*** J. Org. Chem. 2004, 69, 7565-7576
10.1021/jo048773j
anion of (4-nitrophenyl)nitromethane (in water)
C7H5N2O4- *
water

N  Param.: 13.58

sN Param.: 0.52
*** J. Org. Chem. 2004, 69, 7565-7576
10.1021/jo048773j
anion of (4-NO2-C6H4)CH2SO2Ph (in DMSO)
C13H10NO4S- *
DMSO

N  Param.: 18.50

sN Param.: 0.75
*** Org. Biomol. Chem. 2008, 6, 3052-3058
10.1039/b805604h
anion of (4-NO2-C6H4)CH2SO2Ph (in MeCN)
C13H10NO4S *
MeCN

N  Param.: 19.90

sN Param.: 0.66
*** J. Am. Chem. Soc. 2020, 142, 8383-8402
10.1021/jacs.0c01960
anion of (benzylsulfonyl)benzene (in DMSO)
C13H11O2S *
DMSO

N  Param.: 25.77

sN Param.: 0.56
*** Chem. Eur. J. 2015, 21, 875-884
10.1002/chem.201404500
anion of (phenylmethylenedisulfonyl)dibenzene (in DMSO)
C19H15O4S2 *
DMSO

N  Param.: 15.07

sN Param.: 0.79
*** Eur. J. Org. Chem. 2017, , 1196-1202
10.1002/ejoc.201601513
anion of 1,2,3-triphenylpropane-1,3-dione (in DMSO)
C21H15O2 *
DMSO

N  Param.: 14.99

sN Param.: 0.83
*** Eur. J. Org. Chem. 2017, , 1196-1202
10.1002/ejoc.201601513
anion of 1,2-diphenylethanone (in DMSO)
C14H11O *
DMSO

N  Param.: 23.15

sN Param.: 0.60
*** Chem. Eur. J. 2015, 21, 875-884
10.1002/chem.201404500
anion of 1,3-diphenylpropane-1,3-dione (in DMSO)
C15H11O2 *
DMSO

N  Param.: 17.46

sN Param.: 0.65
*** Chem. Eur. J. 2015, 21, 875-884
10.1002/chem.201404500
anion of 1-phenyl-2-(phenylsulfonyl)ethanone (in DMSO)
C14H11O3S *
DMSO

N  Param.: 17.19

sN Param.: 0.56
*** Chem. Eur. J. 2015, 21, 875-884
10.1002/chem.201404500
anion of 1-phenylbutane-1,3-dione (in DMSO)
C10H9O2 *
DMSO

N  Param.: 16.03

sN Param.: 0.86
*** Chem. Eur. J. 2015, 21, 875-884
10.1002/chem.201404500
anion of 1-phenylpropan-2-one (in DMSO)
C9H9O *
DMSO

N  Param.: 24.99

sN Param.: 0.60
*** Chem. Eur. J. 2015, 21, 875-884
10.1002/chem.201404500
anion of 2-(4-CN-C6H4)propionitrile (in DMSO)
C10H7N2- *
DMSO

N  Param.: 25.35

sN Param.: 0.56
*** J. Org. Chem. 2009, 74, 75-81
10.1021/jo802241x
anion of 2-(4-NO2-C6H4)propionitrile (in DMSO)
C9H7N2O2- *
DMSO

N  Param.: 19.61

sN Param.: 0.60
*** J. Org. Chem. 2009, 74, 75-81
10.1021/jo802241x
anion of 2-nitro-1-phenylethan-1-one (in DMSO)
C8H6NO3 *
DMSO

N  Param.: 13.91

sN Param.: 0.76
*** Chem. Eur. J. 2015, 21, 875-884
10.1002/chem.201404500
anion of 2-nitropropane (in 91M9AN)
C3H6NO2- *
MeOH-MeCN mix

N  Param.: 12.20

sN Param.: 0.71
*** Eur. J. Org. Chem. 2006, , 2530-2537
10.1002/ejoc.200500769
anion of 2-nitropropane (in DMSO)
C3H6NO2- *
DMSO

N  Param.: 20.61

sN Param.: 0.69
*** J. Org. Chem. 2004, 69, 7565-7576
10.1021/jo048773j
anion of 2-nitropropane (in water)
C3H6NO2- *
water

N  Param.: 10.69

sN Param.: 0.56
*** J. Org. Chem. 2004, 69, 7565-7576
10.1021/jo048773j
anion of 2-phenyl-2-(phenylsulfonyl)acetonitrile (in DMSO)
C14H10NO2S *
DMSO

N  Param.: 15.97

sN Param.: 0.72
*** Eur. J. Org. Chem. 2017, , 1196-1202
10.1002/ejoc.201601513
anion of 2-phenyl-propionitrile (in DMSO)
C9H8N- *
DMSO

N  Param.: 28.95

sN Param.: 0.58
*** J. Org. Chem. 2009, 74, 75-81
10.1021/jo802241x
anion of 2-phenylmalononitrile (in DMSO)
C9H5N2 *
DMSO

N  Param.: 15.58

sN Param.: 1.00
*** Eur. J. Org. Chem. 2017, , 1196-1202
10.1002/ejoc.201601513
anion of 3-methyl acetylacetone (in DMSO)
C6H9O2- *
DMSO

N  Param.: 18.38

sN Param.: 0.72
*** J. Am. Chem. Soc. 2003, 125, 12980-12986
10.1021/ja036838e
anion of 3-methyl acetylacetone (in water)
C6H9O2- *
water

N  Param.: 14.33

sN Param.: 0.69
*** J. Am. Chem. Soc. 2003, 125, 12980-12986
10.1021/ja036838e
anion of 3-oxo-3-phenylpropanenitrile (in DMSO)
C9H6NO *
DMSO

N  Param.: 16.55

sN Param.: 0.78
*** Chem. Eur. J. 2015, 21, 875-884
10.1002/chem.201404500
anion of 4-(trifluoromethyl)benzyl trifluoromethyl sulfone (in 91M9AN)
C9H5F6O2S- *
MeOH-MeCN mix

N  Param.: 20.72

sN Param.: 0.58
*** J. Am. Chem. Soc. 2007, 129, 9753-9761
10.1021/ja072135b
anion of 4-(trifluoromethyl)benzyl trifluoromethyl sulfone (in DMSO)
C9H5F6O2S- *
DMSO

N  Param.: 17.33

sN Param.: 0.74
*** J. Am. Chem. Soc. 2007, 129, 9753-9761
10.1021/ja072135b
anion of 4-(trifluoromethyl)benzyl trifluoromethyl sulfone (in MeCN)
C9H5F6O2S *
MeCN

N  Param.: 16.15

sN Param.: 0.99
*** J. Am. Chem. Soc. 2020, 142, 8383-8402
10.1021/jacs.0c01960
anion of 4-(trifluoromethyl)benzyl-CN (in DMSO)
C9H5F3N- *
DMSO

N  Param.: 27.28

sN Param.: 0.50
*** J. Org. Chem. 2009, 74, 75-81
10.1021/jo802241x
anion of 4-cyanobenzyl trifluoromethyl sulfone (in 91M9AN)
C9H5F3NO2S- *
MeOH-MeCN mix

N  Param.: 19.49

sN Param.: 0.63
*** J. Am. Chem. Soc. 2007, 129, 9753-9761
10.1021/ja072135b
anion of 4-cyanobenzyl trifluoromethyl sulfone (in DMSO)
C9H5F3NO2S- *
DMSO

N  Param.: 16.28

sN Param.: 0.75
*** J. Am. Chem. Soc. 2007, 129, 9753-9761
10.1021/ja072135b
anion of 4-cyanobenzyl trifluoromethyl sulfone (in MeCN)
C9H5F3NO2S *
MeCN

N  Param.: 15.62

sN Param.: 0.99
*** J. Am. Chem. Soc. 2020, 142, 8383-8402
10.1021/jacs.0c01960
anion of 4-cyanobenzyl-CN (in DMSO)
C9H5N2- *
DMSO

N  Param.: 25.11

sN Param.: 0.54
*** J. Org. Chem. 2009, 74, 75-81
10.1021/jo802241x