Expedient synthesis of tricyclic benzopyran-2-ones via N-Heterocyclic carbene catalyzed annulation of enals to α-methylene cycloalkanones

Expedient synthesis of tricyclic benzopyran-2-ones via N-Heterocyclic carbene catalyzed annulation of enals to α-methylene cycloalkanones

Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron - Volume 71, Issue 47, 25 November 2015, Pages 9022-9027

D. Venkata Mani Padmaja, C.R. Sinu, Jagadeesh Krishnan, Rony Rajan Paul, Sunil Varughese, K.C. Seetha Lakshmi, Vijay Nair,