Optically active epoxy compounds and processes for their production
申请人:TOSOH CORPORATION
公开号:EP1403260B1
公开(公告)日:2007-08-08
US7169944B2
申请人:——
公开号:US7169944B2
公开(公告)日:2007-01-30
Application of radical cyclisation/iodine atom transfer to the chiral synthesis of (−)-methylenolactocin
作者:Simon D. Mawson、Rex.T. Weavers
DOI:10.1016/0040-4020(95)00673-v
日期:1995.10
cyclisation process on a chiral iodo acetylenic ester. Chiral iodohydrins may be formed by regioselective opening of a chiral epoxy ester, prepared by Sharpless epoxidation. C-2 opening is achieved with TMSCl/Nal and C-3 attack with Mgl2. Subsequent esterification of the 2-iodo compound by reaction with substituted propynoyl triflates gives the key lodo acetylenic esters. This route is highly adaptable to the