In the presence of a catalytic amount of active acidic species generated from SnCl4 and AgClO4, various α-glucosides are stereoselectively synthesized in excellent yields from 1-O-2′-(2′-methoxyethoxy)acetyl-2,3,4,6-tetra-O-benzyl-D-glucopyranose and alkyl trimethylsilyl ethers. β-Glucosides are also selectively prepared by using a catalyst, generated from SiCl4 and AgClO4 in the above reaction.
在 SnCl4 和 AgClO4 产生的催化量的活性酸性物质存在下,可以从 1-O-2'-(2'-甲氧基乙氧基)乙酰基-2,3,4,6 立体选择性地合成各种 α-
葡萄糖苷,收率优异-四-O-苄基-
D-吡喃葡萄糖和烷基三甲基甲
硅烷基醚。 β-
葡萄糖苷也可以通过使用上述反应中由SiCl4和AgClO4产生的催化剂选择性地制备。