Direct alpha-Functionalization of Simple Aldehydes via Oxidative N-Heterocyclic Carbene Catalysis

作者:Mo Junming; Yang Ruojie; Chen Xingkuan; Tiwari Bhoopendra; Chi Yonggui Robin*
来源:Organic Letters, 2013, 15(1): 50-53.
DOI:10.1021/ol303035r

摘要

A direct alpha-functionalization of simple aldehydes under N-Heterocyclic Carbene (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 trifluoromethyl ketones.

  • 出版日期2013-1-4
  • 单位南阳理工学院