Substituent effects on carbohydrate coupling reactions promoted by insoluble silver salts
作者:C.A.A. Van Boeckel、T. Beetz、S.F. Van Aelst
DOI:10.1016/0040-4020(84)85091-7
日期:1984.1
reactions were performed in the α-D-glucopyranosyl bromide series (i.e. compounds 1 a–c, 2 a, b, 3 and 4) and the α-D-mannopyranosyl bromide series (i.e. compounds 7 a–c, 8 a, b, 9) with aglycons 5 or 10 in the presence of insoluble silversalt promotors. (i.e. silver silicate and silver zeolite). The insoluble silversalt promotes the formation of the β-glycosidic linkage, while a non-participating group