General Strategy for Stereoselective Synthesis of β-<i>N</i>-Glycosyl Sulfonamides via Palladium-Catalyzed Glycosylation
作者:Yuanwei Dai、Jianfeng Zheng、Qiang Zhang
DOI:10.1021/acs.orglett.8b01506
日期:2018.7.6
A highly efficient and mild glycosylation reaction between 3,4-O-carbonate glycal and N-tosyl functionalized aliphatic and aromatic amines via palladium-catalyzed decarboxylative allylation is disclosed. A wide range of highly functionalized 2,3-unsaturated β-N-glycosides are furnished in good to excellent yields and complete regioselectivity and stereoselectivity. In addition, applications of the
公开了通过钯催化的脱羧烯丙基化,在3,4- O-碳酸碳酸酯与N-甲苯磺酰基官能化的脂族和芳族胺之间的高效且温和的糖基化反应。各种高官能度的2,3-不饱和β- N-糖苷以良好的产率提供,并具有良好的区域选择性和立体选择性。另外,还研究了糖基磺酰胺作为组装功能性衍生物的前体的应用,包括糖基化,二羟基化和向N-糖苷的亲核加成。