A stereoselective α-glucosylation by use of a mixture of 4-nitrobenzenesulfonyl chloride, silver tri-fluoromethanesulfonate, N,N-dimethylacetamide, and triethylamine
作者:Shinkiti Koto、Naohiko Morishima、Miho Owa、Shonosuke Zen
DOI:10.1016/0008-6215(84)85271-4
日期:1984.7
Abstract Stereoselective α-glucosylation of partially protected carbohydrates with 2,3,4,6-tetra-O-benzyl-α- d -glucopyranose in dichloromethane, in the presence of a quaternary mixture of 4-nitrobenzenesulfonyl chloride, silver tri-fluoromethanesulfonate, N,N-dimethylacetamide, and triethylamine gave O-α- d -glucopyranosyl-(1→4)- and 1(1→6)-2-acetamido-2-deoxy- d -glucopyranose (N-acetylmaltosamine
摘要在4-硝基苯磺酰氯,三氟甲磺酸银, N,N-二甲基乙酰胺和三乙胺得到O-α-d-吡喃葡萄糖基-(1→4)-和1(1→6)-2-乙酰氨基-2-脱氧-d-吡喃葡萄糖(N-乙酰基麦芽糖胺和N-乙酰基异麦芽糖胺)。描述了O-α-d-吡喃葡萄糖基-(1→4)-O- [α-d-吡喃葡萄糖基-(1→6)]-d-吡喃葡萄糖的分步合成。