Studies on the oxidative cleavage of the CC triple bond during the autoxidation of acetylenic hydrocarbons. IV. The reaction of Acyloxy and Alkoxy Radicals with α‐diketones

Abstract

AbstractDibenzoyl peroxide, diacetyl peroxide and di‐tert‐butyl peroxide were thermally decomposed at 130°C in the presence of benzil, 1‐phenyl‐propane‐1,2‐dione, and 1‐phenyl‐butane‐1,2‐dione using chlorobenzene as the solvent. In all cases benzoic acid was formed. Moreover, from 1‐phenyl‐propane‐1,2‐dione and 1‐phenylbutane‐1,2 dione considerable amounts of benzil were obtained. The results show that reactions of the type equation image (with X· R′O· or X· R′COO·), previously formulated by us to explain the course of the autoxidation of α‐diketones, really take place.