NHC-Catalyzed Spiro Bis-Indane Formation via Domino Stetter−Aldol−Michael and Stetter−Aldol−Aldol Reactions
作者:Eduardo Sánchez-Larios、Janice M. Holmes、Crystal L. Daschner、Michel Gravel
DOI:10.1021/ol102685u
日期:2010.12.17
Two novel domino NHC-catalyzed spirocyclizations are described herein, enabling the rapid construction of three new carbon-carbon bonds and a quaternary center with high diastereoselectivity. A variety of Spiro bis-indane structures are assembled in a single step from simple o-phthaldialdehyde derivatives.