N-Heterocyclic Carbene Catalyzed Nucleophilic Substitution Reaction for Construction of Benzopyrones and Benzofuranones

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• 作者：Jinmei He ; Jiyue Zheng ; Jian Liu ; Xuegong She ; Xinfu Pan
• 刊名：Organic Letters
• 出版年：2006
• 出版时间：September 28, 2006
• 年：2006
• 卷：8
• 期：20
• 页码：4637 - 4640
• 全文大小：92K
• 年卷期：v.8,no.20(September 28, 2006)
• ISSN：1523-7052

文摘

N-Heterocyclic carbene as an efficient organic catalyst was employed to catalyze an intramolecular nucleophilic substitution reaction. WhenR² was a phenyl group, the cyclization process underwent isomerization, leading to generation of benzofuranone.