Regio- and stereo-selective synthesis of aryl 2-deoxy-C-glycopyranosides by palladium-catalyzed Heck coupling reactions of glycals and aryl iodides
作者:Hou-Hua Li、Xin-Shan Ye
DOI:10.1039/b909248j
日期:——
aryl iodides with pyranoid glycals using a catalytic amount of Pd(OAc)2 to form pyranoid aryl C-glycosides has been achieved. The reaction takes place smoothly in the presence of Ag2CO3 and Cu(OAc)2 (or DMSO) in acetonitrile. This arylation process, which occurs in a highly regio- and stereo-selective manner, provides a simple, mild, and efficient approach to the synthesis of aryl 2-deoxy-C-glycopyranosides
已经实现了使用催化量的Pd(OAc)2形成吡喃类芳基C-糖苷的芳基碘化物与吡喃类糖类的Heck偶联。反应在Ag 2 CO 3和Cu(OAc)2(或二甲基亚砜) 在 乙腈。以高度区域选择性和立体选择性的方式发生的这种芳基化过程为合成芳基2-脱氧-C-糖吡喃糖苷提供了一种简单,温和和有效的方法。