Nucleophilic Reactivities of Silyl Ketene Acetals and Silyl Enol Ethers Containing (C6F5)3SiO and (C6H5)3SiO Groups
作者:Alexander D. Dilman、Herbert Mayr
DOI:10.1002/ejoc.200400706
日期:2005.5
kinetics of the reactions of tris(pentafluorophenyl)silyl and triphenylsilyl ketene acetals and enol ethers with benzhydrylium cations have been measured photometrically. The second-order rate constants (log k2) have been used to determine the nucleophilicity parameters of these π systems, which provide a quantitative comparison of their reactivities with those of other types of nucleophiles. A change