Studies on the chemoselectivity and diastereoselectivity of samarium(II) iodide mediated transformations of carbohydrate derived ω-halo-α,β-unsaturated esters
作者:Sharon M. Bennett、Raphinos Kouya Biboutou、Zhihong Zhou、Robert Pion
DOI:10.1016/s0040-4020(98)00191-4
日期:1998.5
Some carbohydrate derived ω-bromo- and ω-iodo- α,β- unsaturated esters were reduced with SmI2 under a variety of conditions. The chemoselectivity varies dramatically with the choice of solvent system, the identity of halogen atom, the type of ester used, the geometry of the double bond, and the oxygenation pattern of the substrate. The stereoselectivity of the SmI2 mediated reactions is also influenced