Cyclopropenium Cation Promoted Dehydrative Glycosylations Using 2-Deoxy- and 2,6-Dideoxy-Sugar Donors
作者:Jason M. Nogueira、Son Hong Nguyen、Clay S. Bennett
DOI:10.1021/ol200726v
日期:2011.6.3
Dehydrative glycosylation reactions using 2-deoxy- and 2,6-dideoxy-sugar donors promoted by a combination of 3,3-dichloro-1,2-diphenylcyclopropene and tetrabutylammonium iodide (TBAI) are described. The reactions are α-selective and proceed under mild conditions at room temperature without the need for special dehydrating agents. The reaction is shown to be effective with a number of glycosyl acceptors
描述了使用由3,3-二氯-1,2-二苯基环丙烯和碘化四丁基铵的组合促进的2-脱氧和2,6-二脱氧糖供体的脱水糖基化反应。反应是α-选择性的,并且在室温下在温和条件下进行,不需要特殊的脱水剂。该反应对许多糖基受体是有效的,包括具有酸和碱敏感性功能的那些。