Mayr's Database of Reactivity Parameters

Nucleophiles

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Name Solvent Reactivity
Parameters
Classification Reference
(title or year)
o-nitrophenolate (in DMF)
C6H4NO3 *
DMF

N  Param.: 16.65

sN Param.: 0.70
*** J. Org. Chem. 2019, 84, 8837-8858
10.1021/acs.joc.9b01485
o-nitrophenolate (in DMSO)
C6H4NO3 *
DMSO

N  Param.: 15.48

sN Param.: 0.71
*** J. Org. Chem. 2019, 84, 8837-8858
10.1021/acs.joc.9b01485
p-nitrophenolate (in DMF)
C6H4NO3 *
DMF

N  Param.: 15.05

sN Param.: 0.80
*** J. Org. Chem. 2019, 84, 8837-8858
10.1021/acs.joc.9b01485
p-nitrophenolate (in MeCN)
C6H4NO3 *
MeCN

N  Param.: 15.14

sN Param.: 0.82
*** J. Org. Chem. 2019, 84, 8837-8858
10.1021/acs.joc.9b01485
o-nitrophenolate (in MeCN)
C6H4NO3 *
MeCN

N  Param.: 15.83

sN Param.: 0.80
*** J. Org. Chem. 2019, 84, 8837-8858
10.1021/acs.joc.9b01485
cysteine (dianionic, in water)
C3H5NO2S *
water

N  Param.: 23.43

sN Param.: 0.42
*** Org. Biomol. Chem. 2007, 5, 3814-3820
10.1039/b713778h
lithium (5-methylthiophen-2-yl)(4-(trifluoromethyl)phenyl)pinacolborate
C18H21BF3LiO2S *
MeCN

N  Param.: 6.24

sN Param.: 1.00
** Angew. Chem. Int. Ed. 2015, 54, 2780-2783
10.1002/anie.201410562
potassium trifluoro(furan-2-yl)borate
C4H3BF3KO *
MeCN

N  Param.: 5.99

sN Param.: 0.79
** J. Am. Chem. Soc. 2013, 135, 6317-6324
10.1021/ja4017655
((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
((4-methoxyphenyl)sulfonyl)(pyridin-4-yl)amide (Ph4P+) (in CH2Cl2)
C12H11N2O3S- *
dichloromethane

N  Param.: 19.63

sN Param.: 0.65
*** J. Am. Chem. Soc. 2025, 147, 5043-5050
10.1021/jacs.4c14825
((4-methoxyphenyl)sulfonyl)(pyridin-4-yl)amide (Ph4P+) (in MeCN)
C12H11N2O3S- *
MeCN

N  Param.: 17.28

sN Param.: 0.65
*** J. Am. Chem. Soc. 2025, 147, 5043-5050
10.1021/jacs.4c14825
((dimethylsilyl)methyl)trimethylsilane
C6H18Si2 *
dichloromethane

N  Param.: 4.86

sN Param.: 0.64
* Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
((methylsilanediyl)bis(methylene))bis(trimethylsilane)
C9H26Si3 *
dichloromethane

N  Param.: 4.91

sN Param.: 0.64
** Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
(1-azidovinyl)benzene
C8H7N3 *
dichloromethane

N  Param.: 4.57

sN Param.: 0.94
*** Chem. Commun. 2026, 62, 5041-5045
10.1039/d6cc00190d
(1H-inden-1-yl)trimethylsilane (in CH2Cl2)
C12H16Si *
dichloromethane

N  Param.: -0.10

sN Param.: 1.05
*** Angew. Chem. Int. Ed. 2015, 54, 12497-12500
10.1002/anie.201501385
(1H-inden-1-yl)trimethylstannane (in CH2Cl2)
C12H16Sn *
dichloromethane

N  Param.: 6.68

sN Param.: 0.81
*** Angew. Chem. Int. Ed. 2015, 54, 12497-12500
10.1002/anie.201501385
(1H-inden-1-yl)zinc(II) bromide*LiBr (in DMSO)
C9H7Br2LiZn *
DMSO

N  Param.: 15.60

sN Param.: 0.51
** Angew. Chem. Int. Ed. 2015, 54, 12497-12500
10.1002/anie.201501385
(1H-inden-1-yl)zinc(II) chloride*LiCl (in DMSO)
C9H7Cl2LiZn *
DMSO

N  Param.: 18.10

sN Param.: 0.46
** Angew. Chem. Int. Ed. 2015, 54, 12497-12500
10.1002/anie.201501385
(1S)-(-)-alpha-pinene
C10H16 *
dichloromethane

N  Param.: 0.68

sN Param.: 1.10
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
(2,2-diphenylethyl)diethyl(methyl)silane
*
dichloromethane

N  Param.: -6.40

sN Param.: 1.10
- Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
(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
(2-([1,1'-biphenyl]-4-yl)ethyl)trimethylstannane
*
1,2-dichloroethane

N  Param.: -0.80

sN Param.: 1.10
- Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
(2-methylallyl)benzene
C10H12 *
dichloromethane

N  Param.: 0.25

sN Param.: 1.00
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
(2-methylallyl)dicarbonyl(cyclopentadienyl)iron(II)
*
dichloromethane

N  Param.: 8.45

sN Param.: 0.83
*** Helv. Chim. Acta 2005, 88, 1754-1768
10.1002/hlca.200590137
(2-methylallyl)tributylstannane
C16H34Sn *
dichloromethane

N  Param.: 7.48

sN Param.: 0.89
***** J. Am. Chem. Soc. 2001, 123, 9500-9512
10.1021/ja010890y
(2-methylallyl)trichlorosilane
C4H7Cl3Si *
dichloromethane

N  Param.: -0.57

sN Param.: 0.95
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
(2-methylallyl)trimethylsilane
C7H16Si *
dichloromethane

N  Param.: 4.41

sN Param.: 0.96
***** J. Am. Chem. Soc. 2001, 123, 9500-9512
10.1021/ja010890y
(2-methylallyl)triphenylgermane
C22H22Ge *
dichloromethane

N  Param.: 4.67

sN Param.: 0.81
***** J. Am. Chem. Soc. 2001, 123, 9500-9512
10.1021/ja010890y
(2-methylallyl)triphenylsilane
C22H22Si *
dichloromethane

N  Param.: 4.17

sN Param.: 0.79
** J. Am. Chem. Soc. 2001, 123, 9500-9512
10.1021/ja010890y
(2-methylallyl)triphenylstannane
C22H22Sn *
dichloromethane

N  Param.: 5.13

sN Param.: 0.90
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
(2-methylallyl)tris(trimethylsilyl)silane
*
dichloromethane

N  Param.: 4.63

sN Param.: 0.87
*** Org. Lett. 2010, 12, 5206-5209
10.1021/ol102220e
(2R,5S)-5-benzyl-3-methyl-2-(5-methylfuran-2-yl)imidazolidin-4-one
C16H18N2O2 *
MeCN

N  Param.: 7.39

sN Param.: 1.00
*** J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
(2S,5S)-5-benzyl-2-(tert-butyl)-3-methyl-1-((E)-styryl)imidazolidin-4-one
C23H28N2O *
MeCN

N  Param.: 5.80

sN Param.: 0.87
*** Angew. Chem. Int. Ed. 2012, 51, 5739-5742
10.1002/anie.201201240
(2S,5S)-5-benzyl-2-(tert-butyl)-3-methylimidazolidin-4-one
C15H22N2O *
MeCN

N  Param.: 5.44

sN Param.: 1.12
*** J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
(2S,5S)-5-benzyl-3-methyl-2-(5-methylfuran-2-yl)imidazolidin-4-one
C16H18N2O2 *
MeCN

N  Param.: 8.76

sN Param.: 0.89
*** J. Am. Chem. Soc. 2020, 142, 1526-1547
10.1021/jacs.9b11877
(3,3,4,4,5,5,6,6,7,7,7-undecafluoro)-2-(trimethylsiloxy)hept-1-ene
*
dichloromethane

N  Param.: -3.52

sN Param.: 1.17
*** Org. Lett. 2012, 14, 3990-3993
10.1021/ol301766w
(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-chlorobenzyl)dimethylsilane
C9H13ClSi *
dichloromethane

N  Param.: 1.30

sN Param.: 0.75
- Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
(4,4-dimethylpentyl)trimethylstannane
*
dichloromethane/MeCN mix

N  Param.: -3.90

sN Param.: 1.10
- Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
(4,5-dihydrofuran-2-yl)trimethylsilane (in MeCN)
C7H14OSi *
MeCN

N  Param.: 4.23

sN Param.: 0.90
*** Angew. Chem. Int. Ed. 2026, 65, e24329
10.1002/anie.202524329
(4-(tert-butyl)phenethyl)trimethylstannane
*
1,2-dichloroethane

N  Param.: -0.30

sN Param.: 1.10
- Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
(4-Br-C6H4)-(CO)-CH=SMe2
*
dichloromethane

N  Param.: 11.95

sN Param.: 0.76
*** Angew. Chem. Int. Ed. 2009, 48, 5034-5037
10.1002/anie.200900933
(4-Br-C6H4)-(CO)-CH=SMe2 (in DMSO)
*
DMSO

N  Param.: 13.78

sN Param.: 0.72
*** J. Am. Chem. Soc. 2010, 132, 17894-17900
10.1021/ja1084749
(4-chlorophenethyl)trimethylstannane
*
1,2-dichloroethane

N  Param.: -1.80

sN Param.: 1.10
- Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
(4-chlorophenyl)dimethylsilane
C8H11ClSi *
dichloromethane

N  Param.: 3.05

sN Param.: 0.73
* Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
(4-Me2N-C6H4)-(CO)-CH=SMe2 (in DMSO)
*
DMSO

N  Param.: 15.68

sN Param.: 0.65
*** J. Am. Chem. Soc. 2010, 132, 17894-17900
10.1021/ja1084749
(4-MeO-C6H4)-(CO)-CH=SMe2 (in DMSO)
*
DMSO

N  Param.: 14.48

sN Param.: 0.71
*** J. Am. Chem. Soc. 2010, 132, 17894-17900
10.1021/ja1084749
(4-methoxyphenethyl)trimethylstannane
*
1,2-dichloroethane

N  Param.: 0.20

sN Param.: 1.10
- Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
(4-methoxyphenyl)dimethylsilane
C9H14OSi *
dichloromethane

N  Param.: 4.23

sN Param.: 0.73
* Chem. Eur. J. 2013, 19, 249-263
10.1002/chem.201202839
(5-methyl-furan-2-yl) MDA boronate
*
MeCN

N  Param.: 6.38

sN Param.: 0.86
*** Chem. Sci. 2012, 3, 878-882
10.1039/c2sc00883a