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 Stereoselectiveα-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-nitrobenzenesulfonylchloride, silvertri-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