Controlled Payne rearrangements of 2,3-epoxy alcohols in aprotic media: an enantioselective total synthesis of (+)-exo-brevicomin
作者:Philip C. Bulman Page、Christopher M. Rayner、Ian O. Sutherland
DOI:10.1039/c39880000356
日期:——
The catalysis of the isomerisation of primary cis-2,3-epoxy alcohols to threo-1,2-epoxy alcohols by lithium chloride in tetrahydrofuran solution is described; the more reactive terminal epoxides may be selectively trapped in situ by reaction with nucleophiles, and this methodology is used in an enantioselective synthesis of (+)-exo-brevicomin.
描述了氯化锂在四氢呋喃溶液中催化顺式-2,3-环氧伯醇异构化为苏-1,2-环氧醇的反应。通过与亲核试剂反应可以将更多反应性的末端环氧化物选择性地原位捕获,并且该方法用于(+)- exo- brevicomin的对映选择性合成。