作者:Sadagopan Raghavan、Ravi Kumar Chiluveru
DOI:10.1016/j.tetlet.2017.05.033
日期:2017.6
A stereoselective route to an advanced intermediate toward the synthesis of clavosolide A is disclosed. The key steps include Wadsworth-Emmons cyclopropanation, utilization of a sulfinyl moiety as an internal nucleophile to open a cyclopropane ring activated by Hg(II)- to create the C3-C5 stereogenic centers, CC bond formation employing an α-chloro sulfide, asymmetric transfer hydrogenation, regioselective
公开了向合成clavosolide A的高级中间体的立体选择路线。关键步骤包括Wadsworth-Emmons环丙烷化,利用亚磺酰基部分作为内部亲核试剂来打开由Hg(II)活化的环丙烷环,以创建C3-C5立体异构中心,利用α-氯硫键形成C C键,不对称转移氢化,区域选择性氢化硅烷化和Tamao-Fleming氧化。