Diastereoselective construction of continuous all-carbon quaternary centers via intramolecular oxidative coupling reaction
作者:Weiqing Xie、Hexiang Wang、Feng Fan、Junshan Tian、Zhiwei Zuo、Weiwei Zi、Kun Gao、Dawei Ma
DOI:10.1016/j.tetlet.2013.05.146
日期:2013.8
Construction of continuous all-carbon quaternary centers via intramolecular oxidative coupling was described. Intramolecular oxidative coupling of bisoxindole linked by diol derived from d-tartaric acid diastereoselectively produced C1 or C2 isomers of the annulation product. The selectivity was realized by judiciously choosing base and solvent employed in the reaction. As key intermediates for the
描述了通过分子内氧化偶合构建连续的全碳四元中心。双氧吲哚的分子内氧化偶联由衍生自d-酒石酸非对映选择性的二醇连接的环状产物的C 1或C 2异构体。通过明智地选择反应中使用的碱和溶剂来实现选择性。作为合成环色胺生物碱的关键中间体,所得的双恶吲哚应适用于具有连续全碳四元中心的复杂吲哚生物碱的总合成。