Small Ring Compounds. XXII. Ring Opening of Halogenated 3-Phenylcyclobutenones in Acetic Acid and Aqueous Sodium Hydroxide<sup>1a</sup>
作者:Ernest F. Silversmith、Yoshio Kitahara、Marjorie C. Caserio、John D. Roberts
DOI:10.1021/ja01554a065
日期:1958.11
Ring-opening reactions of a number of halogen-substituted 3-phenylcyclobutenones in acetic acid and in aqueous sodium hydroxide have been investigate and the resulting carboxylic acids identified. The course of reaction in acetic acid can be rationalized by a mechanism involving vinylketene intermediates. The base-induced ring-opening reaction appears to follow a course dependent on the number and