N-Heterocyclic Carbene Catalyzed Annulation of Enals to Aurone Analogs: Synthesis of Cyclopentene-Fused Spirobenzofuran-3-ones

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• 作者：K. C. Seetha Lakshmi ; Jagadeesh Krishnan ; C. R. Sinu ; Sunil Varughese ; Vijay Nair
• 刊名：Organic Letters
• 出版年：2014
• 出版时间：December 19, 2014
• 年：2014
• 卷：16
• 期：24
• 页码：6374-6377
• 全文大小：362K
• ISSN：1523-7052

文摘

A nucleophilic heterocyclic carbene mediated homoenolate annulation of enals to aurone analogs leading to the efficient synthesis of cyclopentene-fused spirobenzofuran-3-ones is reported.