A new route to 3-alkyl-2,5-di-t-butyl-2,4-cyclopentadienones from 4-alkyl-2,6-di-t-butylphenols期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

A new route to 3-alkyl-2,5-di-t-butyl-2,4-cyclopentadienones from 4-alkyl-2,6-di-t-butylphenols

Authors:	A. Nishinaga K. Nakamura T. Matsuura

Affiliation:	Department of Synthetic Chemistry, Faculty of Engineering, Kyoto University, Kyoto, Japan

Abstract:	Base-catalyzed reaction of 5-acylmethyl-2,5-di- $t$ -butyl-4-oxa-2-cyclopentenones selectively derived from 4-alkyl-2,6-di- $t$ -butylphenols $via$ three steps involving oxygenation, acetylation, and acid-treatment gave 3-alkyl-2,5-di- $t$ -butyl-2,4-cyclopentadienones in excellent yield.

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