Asymmetric construction of quaternary carbon centers by titanium-mediated stereospecific allylation of 2,3-epoxy alcohol derivatives
作者:Hiroaki Ohno、Kei Hiramatsu、Tetsuaki Tanaka
DOI:10.1016/j.tetlet.2003.10.112
日期:2004.1
A general procedure for the asymmetric construction of a quaternary carbon center from readily available 2,3-epoxy alcohol derivatives was developed. Ring-opening reaction of 2-substituted 2,3-epoxy alcohol derivatives with a reagent prepared from allylmagnesium halide and chlorotitanium triphenoxide affords allylated 1,3-diols having a chiral quaternary carbon as a single isomer by the anti pathway. (C) 2003 Elsevier Ltd. All rights reserved.