Regioselective monochloro substitution in carbohydrates and non-sugar alcohols via Mitsunobu reaction: applications in the synthesis of reboxetine
作者:Abdul Rouf Dar、Mushtaq A. Aga、Brijesh Kumar、Syed Khalid Yousuf、Subhash Chandra Taneja
DOI:10.1039/c3ob40853a
日期:——
A regioselective highyielding monochloro substitution (chlorohydrin formation) via Mitsunobureaction is reported. In carbohydrates and sterically hindered non-sugars, only the primary hydroxyl group is chlorinated, whereas in the non-sugar 1,2- and 1,3-alcohols, predominantly the secondary chloride substitution occurs. The versatile methodology provides indirect access to epoxides with the retention