Highly Flexible Synthesis of Chiral Azacycles via Iridium-Catalyzed Hydrogenation
作者:J. Johan Verendel、Taigang Zhou、Jia-Qi Li、Alexander Paptchikhine、Oleg Lebedev、Pher G. Andersson
DOI:10.1021/ja103901e
日期:2010.7.7
A range of saturated chiral azacycles has been prepared in high yield and with high selectivity from simple starting materials. A modular approach with ring-closing metathesis as a key step was used to produce a number of five-, six-, and seven-membered cyclic alkenes. Asymmetric hydrogenation catalyzed by N,P-ligated iridium complexes gave saturated azacycles in high optical purity. This methodology
一系列饱和手性氮杂环已从简单的原料中以高产率和高选择性制备。以闭环复分解为关键步骤的模块化方法被用于生产许多五元、六元和七元环烯烃。N,P-连接的铱配合物催化的不对称氢化得到高光学纯度的饱和氮杂环。这种方法在药物前体的合成中得到了证明。