Aerobic Oxidative Cross-Coupling of Substituted Acrylamides with Alkenes Catalyzed by an Electron-Deficient CpRh<sup>III</sup> Complex
作者:Ryo Yoshimura、Yu Shibata、Ken Tanaka
DOI:10.1021/acs.joc.9b01733
日期:2019.10.18
It has been established that an electron-deficient CpRhIII complex, bearing two ester moieties on the Cp ring, [CpERhIII], catalyzes the aerobic oxidative cross coupling of substituted acrylamides with both activated and unactivated alkenes, leading to (2Z,4E)-dienamides, at relatively low temperature (80 °C). Importantly, tertiary, secondary, and primary amide directing groups could equally be used
已经确定,在Cp环上带有两个酯部分的缺电子CpRhIII络合物[CpERhIII]催化取代的丙烯酰胺与活化和未活化烯烃的需氧氧化交叉偶联,从而生成(2Z,4E)-二酰胺,温度较低(80°C)。重要的是,叔,仲和伯酰胺导向基团同样可以用于该催化中。机理研究表明,CpERhIII配合物的电子缺陷性质促进了丙烯酰胺的限制营业额的乙烯基CH键裂解。