A stereoselective synthesis of silylated epoxycyclopentanols bearing four contiguous stereogenic centers
作者:Serge Thorimbert、Catherine Taillier、Sébastian Bareyt、Delphine Humilière、Max Malacria
DOI:10.1016/j.tetlet.2004.10.017
日期:2004.11
A palladium-catalyzed Tsuji-Trost alkylation of (E)-2-triethylsilyl-1,4-diacetoxy-but-2-ene with tert-butyl methyl malonate has been performed in excellent chemo and stereoselectivities. The allylated product has been further transformed in few steps in silylated epoxycyclopentanols bearing four controlled stereogenic carbons. The key reaction is a mild tandem oxidation-aldolization induced by DMP or IBX reagents. (C) 2004 Elsevier Ltd. All rights reserved.