Enantioselective total synthesis of sesquiterpenoid phellilane L and its diastereomer
作者:Gullapalli Kumaraswamy、Vankudoth Ramesh、Swargam Vijaykumar
DOI:10.1016/j.tet.2021.132110
日期:2021.5
enantioselective synthesis of phellilane L has been accomplished in six-steps with overall 36% yield. The quinidine-based organocatalytic cyclopropanation of vinyl-ketone with 2-bromo-N,O-dimethylacetamide for the stereoselective construction of substituted cyclopropanes and substrate-controlled methyl Grignard addition to the Weinreb amide are the key steps responsible for the stereoselective synthesis of natural
对苯二酚L的对映选择性合成已通过六个步骤完成,总产率为36%。乙烯基酮与2-溴-N,O-二甲基乙酰胺的基于奎尼丁的有机催化环丙烷化反应,用于取代环丙烷的立体选择结构和Weinreb酰胺的受底物控制的甲基格氏试剂,是天然产物立体选择性合成的关键步骤。