Seetha Lakshmi, K C; Krishanan, J; Sinu, C R; Sunil varughesh; Vijay Nair, G
(ACS Publication, 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.