Photochemical Reaction of 2-Acyloxy-1-methoxycarbonylcyclohexenes: an Efficient Aliphatic Photo-Fries Rearrangement and a Novel 1,5-Aroyl Migration
Upon irradiation 2-acyloxy-1-methoxycarbonylcyclohexenes readily undergo photo-Fries rearrangement to give 2-acyl-2-methoxycarbonylcyclohexanones in good yields and among them 2-aroyloxy-1-methoxycarbonylcyclohexenes also undergo a novel 1,5-aroyl migration according to irradiation conditions to give 4-aroyl-2-methoxycarbonylcyclohexanones, which result from 1,3-aroyl migration following photo-Fries rearrangement.
Seto, Hideharu,Kosemura, Hajime,Fujimoto, Yasuo
p. 908 - 910
(2007/10/02)
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