Small-Ring Compounds. XLIII. Formolysis of Substituted Allylcarbinyl Tosylates¹

Abstract

Rate accelerations have been measured as a function of methyl substitution in 3- and 4-positions and phenyl substitution at the 4-position in the formolysis of allylcarbinyl tosylate. The largest factor, 4.5 x 10^3, was observed for (γ,γ dimethylallyl)carbinyl tosylate. The nature of the solvolytic transition state is discussed; the results are shown to be inconsistent with formation of classical carbonium ion intermediates.