Solvolysis of 1-aryl-1-(trifloromethyl)ethyl tosylates. Evidence for an extremely high electron demand carbenium ion intermediate due to the presence of α-trifluoromethyl substituent
作者:Kwang-Ting Liu、Ching-Fen Sheu
DOI:10.1016/0040-4039(80)88074-9
日期:1980.1
The rate-retarding effect of ?-trifluoromethyl group observed in the solvolysis of 1-aryl-1-(trifluoromethyl)ethyltosylates is so profound that a very large negative α+ value, −8.82, is resulted and the 1-phenyl derivative becomes even less reactive than benzyl tosylate.