An unexpected synthesis of an c, β, γ, δ-unsaturated ketone due to an abnormal opening of benzylidene acetal by bromide anion

• 来源期刊: 中国化学（英文版）
• 学科: 化学
• 年，卷（期）: 2000,（2）
• 所属期刊栏目: Articles
• 页码范围: 212-219
• 页数: 8页
• 分类号: O6
• 语种: 英文

摘要

An unexpected synthesis of an α, β,γ, δ-uusaturated ketone,which embodies a new type of oxy-carbon cyclic structure,was achieved, while we tried to construct the taxane CB-ring system. Also, a series of abnormal reaction phenomena was found to be related to the formation and reaction of seven membered cyclic benzylidene acetal.