作者:Damien Bourgeois、Jacqueline Mahuteau、Ange Pancrazi、Steven P. Nolan、Joëlle Prunet
DOI:10.1055/s-2000-6263
日期:——
Highly functionalized BC ring-systems of Taxol((R)) having the required chemistry for the C1, C2 and C8 centers have been syn the sized using a ring-closing metathesis (RCM) reaction as the key step. Silylene 26 and acetonide 27 were obtained in excellent yields with Schrock's and our recently reported catalyst. In the case of carbonate 23, a trans cyclooctene was formed when using Grubbs' catalyst
已使用闭环复分解 (RCM) 反应作为关键步骤合成了具有 C1、C2 和 C8 中心所需化学性质的高度官能化的紫杉醇 ((R)) 的 BC 环系统。使用 Schrock's 和我们最近报道的催化剂,以优异的产率获得了甲硅烷基 26 和丙酮化物 27。在碳酸盐 23 的情况下,在使用 Grubbs 催化剂时形成了反式环辛烯,这表明 RCM 确实总是进行到热力学平衡的完成。