Mayr's Database of Reactivity Parameters

C=C-OR

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Name Solvent Reactivity
Parameters
Classification Reference
(title or year)
ethyl-vinylether
C4H8O *
dichloromethane

N  Param.: 3.92

sN Param.: 0.90
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
isobutylenyl-ethylether
C6H12O *
dichloromethane

N  Param.: 4.23

sN Param.: 1.00
* Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
2,3-dihydrofuran
C4H6O *
dichloromethane

N  Param.: 4.37

sN Param.: 0.90
**** Eur. J. Org. Chem. 2005, , 1760-1764
10.1002/ejoc.200400706
n-butyl vinyl ether
*
dichloromethane

N  Param.: 3.76

sN Param.: 0.91
***** J. Am. Chem. Soc. 2012, 134, 13902-13911
10.1021/ja306522b
2,3-dihydrofuran (in MeCN)
C4H6O *
MeCN

N  Param.: 5.02

sN Param.: 0.63
*** Angew. Chem. Int. Ed. 2026, 65, e24329
10.1002/anie.202524329
5-methyl-2,3-dihydrofuran (in MeCN)
C5H8O *
MeCN

N  Param.: 7.65

sN Param.: 0.86
*** Angew. Chem. Int. Ed. 2026, 65, e24329
10.1002/anie.202524329
(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
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
(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
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
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
2-((TBDMSO-methyl)-3,4-bis(TBDMSO)-3,4-dihydro-2H-pyran
C24H52O4Si3 *
dichloromethane

N  Param.: 1.97

sN Param.: 1.20
*** Angew. Chem. Int. Ed. 2026, 65, e24329
10.1002/anie.202524329
3,4-bis(benzyloxy)-2-((benzyloxy)methyl)-6-methyl-3,4-dihydro-2H-pyran
C28H30O4 *
dichloromethane

N  Param.: 4.98

sN Param.: 0.65
*** 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.: 1.75

sN Param.: 1.37
*** Angew. Chem. Int. Ed. 2026, 65, e24329
10.1002/anie.202524329
3,4-bis(benzyloxy)-2-((benzyloxy)methyl)-6-methylenetetrahydro-2H-pyran
C28H30O4 *
dichloromethane

N  Param.: 6.19

sN Param.: 0.79
*** Angew. Chem. Int. Ed. 2026, 65, e24329
10.1002/anie.202524329
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
3,4,5-tris(benzyloxy)-2-((benzyloxy)methyl)-6-methylenetetrahydro-2H-pyran
C35H36O5 *
dichloromethane

N  Param.: 4.01

sN Param.: 0.91
*** Angew. Chem. Int. Ed. 2026, 65, e24329
10.1002/anie.202524329
3,4-bis(benzyloxy)-2-((benzyloxy)methyl)-5-methylenetetrahydrofuran
C27H28O4 *
dichloromethane

N  Param.: 5.50

sN Param.: 0.76
*** Angew. Chem. Int. Ed. 2026, 65, e24329
10.1002/anie.202524329
4-((benzyloxy)methyl)-2,2-dimethyl-6-methylenetetrahydrofuro[3,4-d][1,3]dioxole
C16H20O4 *
dichloromethane

N  Param.: 5.35

sN Param.: 0.88
*** 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
3,4-bis(benzyloxy)-2-methyl-3,4-dihydro-2H-pyran
 C20H22O3 *
dichloromethane

N  Param.: 2.04

sN Param.: 1.20
*** Angew. Chem. Int. Ed. 2026, 65, e24329
10.1002/anie.202524329