Hydrogen Transfer. I. Reaction of p-Cymene with Olefinic Hydrocarbons in the Presence of Sulfuric Acid and Hydrogen Fluoride Catalysts1, 2

VN Ipatieff, H Pines, RC Olberg

Index: Ipatieff; Pines; Olberg Journal of the American Chemical Society, 1948 , vol. 70, p. 2123,2127

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Citation Number: 23

Abstract

3. Part of the dimethyl-p-tolyl carbonium ion formed may lose a proton to form 1-methyl-$- ispropenylbenzene; the latter on reaction with the dimethyl-p-tolylcarbonium ion forms probably 2, 4-di-p-tolyl-4-methyl-2-pentylcarbonium ion. The latter through an internal addition to the benzene ring and a. subsequent loss of a proton yields 1, 3, 3, 6-tetramethyl- lp-tolylindan (I).