Kinetic study of the esterification of arylmethanols in trifluoroacetic acid: mechanistic change consequent upon aryl substituent effects
作者:Paul Kavanagh、Anthony C. Knipe、William E. Watts
DOI:10.1039/c39790000905
日期:——
Aryl substituent effects upon the rate constants for the esterification of a series of arylmethanols in neat trifluoroacetic acid are in accordance with a reverse AAC2 mechanism for those substrates bearing an electron-withdrawing substituent (ρ=–0·79), whereas a reverse AAL1 mechanism is indicated for those bearing a methyl substituent.
芳基取代基对一系列芳基甲醇在纯三氟乙酸中酯化的速率常数的影响符合反向A AC 2机理,适用于带有吸电子取代基的底物(ρ = -0·79),而反向甲AL 1个机构指示用于那些带有甲基取代基。