Divergent Enantioselective Total Synthesis of Siphonarienal, Siphonarienone, and Pectinatone
作者:Jhillu Singh Yadav、D. Narasimha Chary、Nagendra Nath Yadav、Sandip Sengupta、Basi V. Subba Reddy
DOI:10.1002/hlca.201300035
日期:2013.10
A divergent synthesis of siphonarienal, siphonarienone, and pectinatone has been achieved from a common precursor 4, which was synthesized by using an enzymatic desymmetrization approach. The major key steps involved were Grignard reaction, Wittig reaction, Evans' asymmetric alkylation, and base‐catalyzed cyclization.
从共同的前体4获得了虹吸烯醛,虹吸烯酮和果胶酮的发散合成,该前体4是通过酶促脱对称方法合成的。涉及的主要关键步骤是格利雅(Grignard)反应,维蒂希(Wittig)反应,埃文斯(Evans)的不对称烷基化和碱催化的环化反应。