SOLVOLYSIS OF 1-ARYL-1-(TRIFLUOROMETHYL)ETHYL TOSYLATES. EVIDENCE FOR AN EXTREMELY HIGH ELECTRON DEMAND CARBENIUM ION INTERMEDIATE DUE TO THE PRESENCE OF α-TRIFLUOROMETHYL SUBSTITUENT
The rate-retarding effect of α-trifluoromethyl group observed in the solvolysis of 1-aryl-1-(trifluoromethyl)ethyl tosylates is so profound that a very large negative ρ+ value, -8.82, is resulted and the 1-phenyl derivative becomes even less re