Decarboxylative Negishi Coupling of Redox‐Active Aliphatic Esters by Cobalt Catalysis
作者:Xu‐Ge Liu、Chu‐Jun Zhou、E. Lin、Xiang‐Lei Han、Shang‐Shi Zhang、Qingjiang Li、Honggen Wang
DOI:10.1002/anie.201806799
日期:2018.10
A cobalt‐catalyzed decarboxylative Negishi coupling reaction of redox‐active aliphatic esters with organozinc reagents was developed. The method enabled efficient alkyl–aryl, alkyl–alkenyl, and alkyl–alkynyl coupling reactions under mild reaction conditions with no external ligand or additive needed. The success of an in situ activation protocol and the facile synthesis of the drug molecule (±)‐preclamol
开发了氧化还原活性脂族酯与有机锌试剂的钴催化脱羧Negishi偶联反应。该方法可以在温和的反应条件下进行高效的烷基-芳基,烷基-烯基和烷基-炔基偶联反应,而无需外部配体或添加剂。原位激活方案的成功实施和药物分子(±)-preclamol的轻松合成凸显了该方法的合成潜力。机理研究表明,涉及一种根本机制。