<i>N</i>-Heterocyclic Carbene Catalyzed Annulation of Enals to Aurone Analogs: Synthesis of Cyclopentene-Fused Spirobenzofuran-3-ones
作者:K. C. Seetha Lakshmi、Jagadeesh Krishnan、C. R. Sinu、Sunil Varughese、Vijay Nair
DOI:10.1021/ol5031684
日期:2014.12.19
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.