Enantioselective Copper-Catalyzed Desymmetrization of 1,3-Diketones Involving Borylation of Styrenes
作者:Purui Zheng、Xiaoyu Han、Jiao Hu、Xiaoming Zhao、Tao XU
DOI:10.1021/acs.orglett.9b02199
日期:2019.8.2
copper-catalyzed intramolecular enantioselective and diastereoselective borylative coupling of styrenes and ketones was achieved by merging desymmetrization strategy and olefin difunctionalization. The reaction proceeds through an initial enantioselective borylcupration of styrenes, followed by a highly selective direct addition to 1,3-diketones. The bicyclic scaffolds with three chiral carbon centers, including
通过结合脱对称化策略和烯烃双官能化,实现了铜催化的苯乙烯和酮的分子内对映选择性和非对映选择性硼化偶联。该反应通过苯乙烯的初始对映选择性的硼基杯化进行,然后高选择性地直接添加到1,3-二酮中。具有三个手性碳中心(包括两个四取代的碳)的双环支架以优异的收率,非对映选择性和对映选择性产生。由于产物中官能团的多功能性,该催化串联反应对于进一步合成应用手性多环化合物具有巨大的潜力。