Cobalt-Bisoxazoline-Catalyzed Enantioselective Cross-Coupling of α-Bromo Esters with Alkenyl Grignard Reagents
作者:Yun Zhou、Lifeng Wang、Gucheng Yuan、Shikuo Liu、Xiao Sun、Chaonan Yuan、Yuxiong Yang、Qinghua Bian、Min Wang、Jiangchun Zhong
DOI:10.1021/acs.orglett.0c01557
日期:2020.6.5
cobalt-bisoxazoline catalyst and afforded various α-alkyl-β,γ-unsaturated esters with excellent enantioselectivities and moderate to good yields (≤95% ee and ≤82% yields). The formal synthesis of the California red scale pheromone using this method was investigated, and radical clock experiments were performed.
已经开发出有机卤化物与烯基格氏试剂的第一催化不对称熊田交叉偶联反应。用钴-双恶唑啉催化剂促进反应,得到各种α-烷基-β,γ-不饱和酯,其具有优异的对映选择性和中等至良好的收率(≤95%ee和≤82%收率)。研究了使用这种方法的加利福尼亚红标信息素的形式合成,并进行了自由基时钟实验。