Mayr's Database of Reactivity Parameters

Nucleophiles

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Name Solvent Reactivity
Parameters
Classification Reference
(title or year)
1-methylsilolane
C5H12Si *
dichloromethane

N  Param.: 2.20

sN Param.: 0.75
- Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
cis-HMn(PCy3)(CO)4
*
dichloromethane

N  Param.: 2.20

sN Param.: 0.80
- Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
acetonitrile (in MeCN)
*
MeCN

N  Param.: 2.23

sN Param.: 0.84
*** J. Am. Chem. Soc. 2012, 134, 13902-13911
10.1021/ja306522b
methylenecycloheptane
C8H14 *
dichloromethane

N  Param.: 2.24

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

N  Param.: 2.27

sN Param.: 0.73
* Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
cyclopentadiene
C5H6 *
dichloromethane

N  Param.: 2.30

sN Param.: 1.06
*** Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
1-methylsiletane
C4H10Si *
dichloromethane

N  Param.: 2.30

sN Param.: 0.75
- Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
cis-HMn(PPh3)(CO)4
*
dichloromethane

N  Param.: 2.30

sN Param.: 0.80
- Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
methylenecycloundecane
C12H22 *
dichloromethane

N  Param.: 2.33

sN Param.: 0.90
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
alpha-methylstyrene
C9H10 *
dichloromethane

N  Param.: 2.35

sN Param.: 1.00
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
2-(tributylsilyl)furan
C16H30OSi *
dichloromethane

N  Param.: 2.37

sN Param.: 1.10
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
dimethyl(propoxy)silane
C5H14OSi *
dichloromethane

N  Param.: 2.40

sN Param.: 0.75
- Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
HW(CO)3(C5H4Me)
*
dichloromethane

N  Param.: 2.40

sN Param.: 0.80
- Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
1,3-dimethoxybenzene
C8H10O2 *
dichloromethane

N  Param.: 2.48

sN Param.: 1.09
***** J. Am. Chem. Soc. 2001, 123, 9500-9512
10.1021/ja010890y
methylenecyclononane
C10H18 *
dichloromethane

N  Param.: 2.57

sN Param.: 0.90
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
4-methyl-penta-1,3-diene
C6H10 *
dichloromethane

N  Param.: 2.60

sN Param.: 1.00
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
2-cyclopropylpropene
C6H10 *
dichloromethane

N  Param.: 2.60

sN Param.: 1.00
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
triphenylsilane
C18H16Si *
dichloromethane

N  Param.: 2.65

sN Param.: 0.72
*** Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
methyldiphenylsilane
C13H14Si *
dichloromethane

N  Param.: 2.72

sN Param.: 0.73
* Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
2-diazo-1-benzosuberone
C11H10N2O *
dichloromethane

N  Param.: 2.72

sN Param.: 0.96
*** Eur. J. Org. Chem. 2023, 26, e202300005
10.1002/ejoc.202300005
benzyldimethylsilane
C9H14Si *
dichloromethane

N  Param.: 2.78

sN Param.: 0.73
* Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
6-((benzyloxy)methyl)-3,4-dihydro-2H-pyran (in MeCN)
C13H16O2 *
MeCN

N  Param.: 2.81

sN Param.: 0.57
*** Angew. Chem. Int. Ed. 2026, 65, e24329
10.1002/anie.202524329
methylenecyclopentane
C6H10 *
dichloromethane

N  Param.: 2.82

sN Param.: 0.90
***** J. Am. Chem. Soc. 2001, 123, 9500-9512
10.1021/ja010890y
methylenecyclodecane
C11H20 *
dichloromethane

N  Param.: 2.82

sN Param.: 0.90
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
5-cyano-indole
C9H6N2 *
MeCN

N  Param.: 2.83

sN Param.: 1.10
* J. Org. Chem. 2006, 71, 9088-9095
10.1021/jo0614339
(3,4-dihydro-2H-pyran-6-yl)trimethylsilane (in MeCN)
C8H16OSi *
MeCN

N  Param.: 2.87

sN Param.: 0.68
*** Angew. Chem. Int. Ed. 2026, 65, e24329
10.1002/anie.202524329
((3,4-dihydro-2H-pyran-6-yl)methoxy)triisopropylsilane (in MeCN)
C15H30O2Si *
MeCN

N  Param.: 2.87

sN Param.: 0.66
*** Angew. Chem. Int. Ed. 2026, 65, e24329
10.1002/anie.202524329
(5-methyl-furan-2-yl) pinacol boronate
*
MeCN

N  Param.: 2.90

sN Param.: 0.98
*** Chem. Sci. 2012, 3, 878-882
10.1039/c2sc00883a
10% water/90%TFE (v/v)
H2O *
water-TFE mix

N  Param.: 2.93

sN Param.: 0.88
*** J. Am. Chem. Soc. 2004, 126, 5174-5181
10.1021/ja031828z
triisopropylsilane
*
dichloromethane

N  Param.: 2.93

sN Param.: 0.73
* Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
3,4-dihydro-2H-pyran (in MeCN)
C5H8O *
MeCN

N  Param.: 2.98

sN Param.: 0.72
*** Angew. Chem. Int. Ed. 2026, 65, e24329
10.1002/anie.202524329
(Z)-1,2-diphenyl-1-(trimethylsiloxy)ethene (in MeCN)
 C17H20OSi *
MeCN

N  Param.: 3.00

sN Param.: 0.83
*** Synthesis 2019, 51, 1157-1170
10.1055/s-0037-1611634
(4-chlorophenyl)dimethylsilane
C8H11ClSi *
dichloromethane

N  Param.: 3.05

sN Param.: 0.73
* Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
3-methoxythiophene
C5H6OS *
MeCN

N  Param.: 3.06

sN Param.: 1.19
*** J. Am. Chem. Soc. 2013, 135, 6317-6324
10.1021/ja4017655
allyltriphenylstannane
C21H20Sn *
dichloromethane

N  Param.: 3.09

sN Param.: 0.90
***** J. Am. Chem. Soc. 2001, 123, 9500-9512
10.1021/ja010890y
(E)-2-methyl-penta-1,3-diene
C6H10 *
dichloromethane

N  Param.: 3.09

sN Param.: 1.00
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
1-(1-azidovinyl)-4-(trifluoromethyl)benzene
C9H6F3N3 *
dichloromethane

N  Param.: 3.10

sN Param.: 0.77
*** Chem. Commun. 2026, 62, 5041-5045
10.1039/d6cc00190d
N-(triisopropylsilyl)pyrrole
C13H25NSi *
dichloromethane

N  Param.: 3.12

sN Param.: 0.93
*** Chem. Eur. J. 2003, 9, 2209-2218
10.1002/chem.200204666
1,1,1,3,3-pentamethyldisiloxane
C5H16OSi2 *
dichloromethane

N  Param.: 3.12

sN Param.: 0.73
* Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
1-(phenylethynyl)pyrrolidin-2-one
C12H11NO *
dichloromethane

N  Param.: 3.12

sN Param.: 0.85
* Angew. Chem. Int. Ed. 2014, 53, 4968-4971
10.1002/anie.201402055
(2,3-dimethylbut-2-enyl)triethylsilane
C12H26Si *
dichloromethane

N  Param.: 3.15

sN Param.: 1.15
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
trimethylsilane
C3H10Si *
dichloromethane

N  Param.: 3.15

sN Param.: 0.73
* Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
methylenecyclooctane
C9H16 *
dichloromethane

N  Param.: 3.16

sN Param.: 0.90
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
3-diazoindolin-2-one
C8H5N3O *
dichloromethane

N  Param.: 3.16

sN Param.: 1.03
*** Eur. J. Org. Chem. 2023, 26, e202300005
10.1002/ejoc.202300005
1-(1-azidovinyl)naphthalene
C12H9N3 *
dichloromethane

N  Param.: 3.17

sN Param.: 0.88
*** Chem. Commun. 2026, 62, 5041-5045
10.1039/d6cc00190d
20% water/80%TFE (v/v)
H2O *
water-TFE mix

N  Param.: 3.20

sN Param.: 0.88
*** J. Am. Chem. Soc. 2004, 126, 5174-5181
10.1021/ja031828z
ethyldimethylsilane
C4H12Si *
dichloromethane

N  Param.: 3.30

sN Param.: 0.73
* Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
diethyl(methyl)silane
C5H14Si *
dichloromethane

N  Param.: 3.40

sN Param.: 0.73
* Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
tris((dimethyl(phenyl)silyl)methyl)silane
C27H40Si4 *
dichloromethane

N  Param.: 3.40

sN Param.: 0.66
** Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
cyclohepta-1,3,5-trienyl-Fe(CO)3
*
dichloromethane

N  Param.: 3.42

sN Param.: 0.94
*** J. Am. Chem. Soc. 2001, 123, 9500-9512
10.1021/ja010890y