Direct α-Functionalization of Simple Aldehydes via Oxidative N-Heterocyclic Carbene Catalysis
作者:Junming Mo、Ruojie Yang、Xingkuan Chen、Bhoopendra Tiwari、Yonggui Robin Chi
DOI:10.1021/ol303035r
日期:2013.1.4
A direct α-functionalization of simple aldehydes under N-HeterocyclicCarbene (NHC) catalysis and direct generation of ester enolate equivalents from nonfunctionalized aldehydes are disclosed. The catalysis involves selective enolate generation from an oxidatively generated NHC-bounded ester intermediate as a key step. The ester enolate intermediates undergo stereoselective reactions with enones and