Highly anti-selective conjugate addition of arylcuprates to a γ-alkoxy-α,β-enoate. A new method to address stereochemical challenges presented by Amaryllidaceae alkaloids
作者:Madhuri Manpadi、Alexander Kornienko
DOI:10.1016/j.tetlet.2005.05.006
日期:2005.6
Various substituted arylcuprates undergo stereocontrolled additions to a D-mannitol-derived gamma-alkoxy-alpha, beta-enoate with exclusive anti-selectivity. The method is well suited for the preparation of a broad range of biologically active Amaryllidaceae alkaloids and their aromatic analogues. A model accounting for the stereochemical outcome of this process is presented. (c) 2005 Elsevier Ltd. All rights reserved.