Lakshmi, K C S; Krishnan, J; Sinu, C R; Varughese, S; Nair, V
(ACS Publications, 2014-12-19)
A nucleophilic heterocyclic carbene mediatedhomoenolate annulation of enals to aurone analogs leading tothe efficient synthesis of cyclopentene-fused spirobenzofuran-3-ones is reported.