Mayr's Database of Reactivity Parameters

C-Nucleophiles

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Name Solvent Reactivity
Parameters
Classification Reference
(title or year)
beta-(trimethylsilyl)styrene
C11H16Si *
dichloromethane

N  Param.: -0.43

sN Param.: 1.06
*** Chem. Eur. J. 2014, 20, 1103-1110
10.1002/chem.201303215
2-phenyl-allyltrimethylsilane
C12H18Si *
dichloromethane

N  Param.: 5.38

sN Param.: 0.89
*** Chem. Eur. J. 2014, 20, 1103-1110
10.1002/chem.201303215
1-(p-tolyl)-1-(trimethylsilyl)ethene
C12H18Si *
dichloromethane

N  Param.: -0.65

sN Param.: 1.59
*** Chem. Eur. J. 2014, 20, 1103-1110
10.1002/chem.201303215
N-benzyl-N-(but-1-yn-1-yl)-4-methylbenzenesulfonamide
C18H19NO2S *
dichloromethane

N  Param.: 5.16

sN Param.: 0.85
*** Angew. Chem. Int. Ed. 2014, 53, 4968-4971
10.1002/anie.201402055
N-benzyl-N-((2-methoxyphenyl)ethynyl)-4-methylbenzenesulfonamide
C23H21NO3S *
dichloromethane

N  Param.: 4.40

sN Param.: 0.86
*** Angew. Chem. Int. Ed. 2014, 53, 4968-4971
10.1002/anie.201402055
4-methyl-N-(2-phenylethynyl)-N-(phenylmethyl)benzenesulfonamide
C22H19NO2S *
dichloromethane

N  Param.: 3.85

sN Param.: 0.84
*** Angew. Chem. Int. Ed. 2014, 53, 4968-4971
10.1002/anie.201402055
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
(E)-1-styrylpyrrolidine (in CH2Cl2)
C12H15N *
dichloromethane

N  Param.: 12.26

sN Param.: 0.93
*** J. Am. Chem. Soc. 2014, 136, 14263-14269
10.1021/ja508065e
(E)-1-styryl-2-tritylpyrrolidine (in CH2Cl2)
C31H29N *
dichloromethane

N  Param.: 10.19

sN Param.: 1.06
*** J. Am. Chem. Soc. 2014, 136, 14263-14269
10.1021/ja508065e
(E)-1-styryl-2-(triphenylsilyl)pyrrolidine (in CH2Cl2)
C30H29NSi *
dichloromethane

N  Param.: 11.77

sN Param.: 0.98
*** J. Am. Chem. Soc. 2014, 136, 14263-14269
10.1021/ja508065e
(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)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
Cp2Zr(Me)2 - Dimethylzirconocene
*
dichloromethane

N  Param.: 4.35

sN Param.: 1.09
*** Chem. Eur. J. 2016, 22, 11196-11200
10.1002/chem.201602452
Cp2Zr(CH2Ph)2 - Dibenzylzirconocene
*
dichloromethane

N  Param.: 5.10

sN Param.: 1.03
*** Chem. Eur. J. 2016, 22, 11196-11200
10.1002/chem.201602452
Cp2Ti(CH2Ph)2 - Dibenzyltitanocene
*
dichloromethane

N  Param.: 4.38

sN Param.: 1.00
* Chem. Eur. J. 2016, 22, 11196-11200
10.1002/chem.201602452
(Cp*)2Zr(Me)2 - Dimethyl-bis(pentamethylcyclopentadienyl)zirconium
C22H36Zr *
dichloromethane

N  Param.: 5.49

sN Param.: 1.06
*** Chem. Eur. J. 2016, 22, 11196-11200
10.1002/chem.201602452
Dimethyl 1,1'-isopropylidenezirconocene
*
dichloromethane

N  Param.: 5.20

sN Param.: 1.00
* Chem. Eur. J. 2016, 22, 11196-11200
10.1002/chem.201602452
Dimethyl bis(indenyl)zirconium(IV)
*
dichloromethane

N  Param.: 6.89

sN Param.: 1.00
* Chem. Eur. J. 2016, 22, 11196-11200
10.1002/chem.201602452
Meldrum's acid iodonium ylide (in CH2Cl2)
*
dichloromethane

N  Param.: 4.36

sN Param.: 1.06
*** J. Am. Chem. Soc. 2016, 138, 10304-10313
10.1021/jacs.6b05768
Dimedone iodonium ylide (in CH2Cl2)
*
dichloromethane

N  Param.: 6.18

sN Param.: 0.81
*** J. Am. Chem. Soc. 2016, 138, 10304-10313
10.1021/jacs.6b05768
N,N-Dimethylbarbituric acid iodonium ylide (in CHCl2)
*
dichloromethane

N  Param.: 7.98

sN Param.: 0.71
*** J. Am. Chem. Soc. 2016, 138, 10304-10313
10.1021/jacs.6b05768
6-methyl-3-(phenyl-l3-iodanylidene)dihydro-2H-pyran-2,4(3H)-dione (in CH2Cl2)
*
dichloromethane

N  Param.: 4.67

sN Param.: 0.92
*** J. Am. Chem. Soc. 2016, 138, 10304-10313
10.1021/jacs.6b05768
4,4,5,5-tetramethyl-2-prop-2-enyl-1,3,2-dioxaborolane (in CH2Cl2)
C9H17BO2 *
dichloromethane

N  Param.: -0.64

sN Param.: 1.10
*** J. Am. Chem. Soc. 2017, 139, 15324-15327
10.1021/jacs.7b10240
(p-nitrophenyl)diazomethane
*
dichloromethane

N  Param.: 7.17

sN Param.: 0.83
*** J. Am. Chem. Soc. 2018, 140, 16758-16772
10.1021/jacs.8b09995
(p-cyanophenyl)diazomethane
*
dichloromethane

N  Param.: 7.66

sN Param.: 0.80
*** J. Am. Chem. Soc. 2018, 140, 16758-16772
10.1021/jacs.8b09995
(p-bromophenyl)diazomethane
*
dichloromethane

N  Param.: 8.87

sN Param.: 0.82
*** J. Am. Chem. Soc. 2018, 140, 16758-16772
10.1021/jacs.8b09995
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
2-diazoindan-1-one
C9H6N2O *
dichloromethane

N  Param.: 5.61

sN Param.: 0.65
*** Eur. J. Org. Chem. 2023, 26, e202300005
10.1002/ejoc.202300005
2-diazocyclohexanone
C6H8N2O *
dichloromethane

N  Param.: 3.44

sN Param.: 0.83
*** Eur. J. Org. Chem. 2023, 26, e202300005
10.1002/ejoc.202300005
2-diazo-1-tetralone
C10H8N2O *
dichloromethane

N  Param.: 3.51

sN Param.: 0.86
*** Eur. J. Org. Chem. 2023, 26, e202300005
10.1002/ejoc.202300005
2-diazoindandione
C9H4N2O2 *
dichloromethane

N  Param.: 0.16

sN Param.: 0.86
*** Eur. J. Org. Chem. 2023, 26, e202300005
10.1002/ejoc.202300005
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
2-diazobenzothiophen-3(2H)-one
C8H4N2OS *
dichloromethane

N  Param.: 0.40

sN Param.: 0.93
*** Eur. J. Org. Chem. 2023, 26, e202300005
10.1002/ejoc.202300005
2-((2,2,5,5-tetramethyl-1-styryl-2,5-dihydro-1H-imidazol-4-yl)thio)acetonitrile (in CH2Cl2)
C17H21N3S *
dichloromethane

N  Param.: 7.06

sN Param.: 1.11
*** Chem. Commun. 2023, 59, 8091-8084
10.1039/d3cc01912h
diazocyclopentadiene (in CH2Cl2)
C5H4N2 *
dichloromethane

N  Param.: 4.84

sN Param.: 1.06
*** Synthesis 2023, 55, 354-358
10.1055/s-0041-1737327
(E)-4-(ethylthio)-2,2,5,5-tetramethyl-1-styryl-2,5-dihydro-1H-imidazole (in CH2Cl2)
C17H24N2S *
dichloromethane

N  Param.: 8.13

sN Param.: 0.97
*** Chem. Eur. J. 2024, 30, e202302764
10.1002/chem.202302764
(E)-4-(benzylthio)-2,2,5,5-tetramethyl-1-styryl-2,5-dihydro-1H-imidazole (in CH2Cl2)
C22H26N2S *
dichloromethane

N  Param.: 7.99

sN Param.: 0.98
*** Chem. Eur. J. 2024, 30, e202302764
10.1002/chem.202302764
methyl diazoacetate
C3H4N2O2 *
dichloromethane

N  Param.: 4.68

sN Param.: 0.94
*** J. Am. Chem. Soc. 2023, 145, 7416-7434
10.1021/jacs.2c13872
dimethyl diazomalonate
C5H6N2O4 *
dichloromethane

N  Param.: -1.24

sN Param.: 0.81
*** J. Am. Chem. Soc. 2023, 145, 7416-7434
10.1021/jacs.2c13872
(1-azidovinyl)benzene
C8H7N3 *
dichloromethane

N  Param.: 4.57

sN Param.: 0.94
*** Chem. Commun. 2026, 62, 5041-5045
10.1039/d6cc00190d
1-(1-azidovinyl)-4-methylbenzene
C9H9N3 *
dichloromethane

N  Param.: 5.47

sN Param.: 0.87
*** Chem. Commun. 2026, 62, 5041-5045
10.1039/d6cc00190d
1-(1-azidovinyl)-4-methoxybenzene
C9H9N3O *
dichloromethane

N  Param.: 6.08

sN Param.: 0.99
*** Chem. Commun. 2026, 62, 5041-5045
10.1039/d6cc00190d
4-(1-azidovinyl)-1,1'-biphenyl
C14H11N3 *
dichloromethane

N  Param.: 5.17

sN Param.: 0.86
*** Chem. Commun. 2026, 62, 5041-5045
10.1039/d6cc00190d
1-(1-azidovinyl)-4-(chloromethyl)benzene
C9H8ClN3 *
dichloromethane

N  Param.: 4.13

sN Param.: 0.96
*** Chem. Commun. 2026, 62, 5041-5045
10.1039/d6cc00190d
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
2-(1-azidovinyl)naphthalene
C12H9N3 *
dichloromethane

N  Param.: 5.39

sN Param.: 0.89
*** Chem. Commun. 2026, 62, 5041-5045
10.1039/d6cc00190d
1-(1-azidovinyl)naphthalene
C12H9N3 *
dichloromethane

N  Param.: 3.17

sN Param.: 0.88
*** Chem. Commun. 2026, 62, 5041-5045
10.1039/d6cc00190d
3,4-dimethoxy-2-(methoxymethyl)-3,4-dihydro-2H-pyran
C9H16O4 *
dichloromethane

N  Param.: 1.53

sN Param.: 1.38
*** Angew. Chem. Int. Ed. 2026, 65, e24329
10.1002/anie.202524329
2-(acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate
C12H16O7 *
dichloromethane

N  Param.: 1.72

sN Param.: 1.24
*** Angew. Chem. Int. Ed. 2026, 65, e24329
10.1002/anie.202524329
3,4-bis(benzyloxy)-2-((benzyloxy)methyl)-3,4-dihydro-2H-pyran
C27H28O4 *
dichloromethane

N  Param.: 1.89

sN Param.: 1.27
*** Angew. Chem. Int. Ed. 2026, 65, e24329
10.1002/anie.202524329