Einfache und stereoselektive synthese von α-und β-phenylglykosiden

LF Tietze, HJ Guder

文献索引：Tietze, Lutz-F.; Fischer, Roland; Guder, Hans-Joachim Tetrahedron Letters, 1982 , vol. 23, # 45 p. 4661 - 4664

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被引用次数: 50

摘要

Abstract Reaction of phenyl-trimethylsilylethers (3) with 1-O-trimethylsilyl-2, 3, 4, 6-tetra-O- acetyl-D-glucoside (1)(anomeric mixture) yields almost exclusively the aryl-β-glucosides (4) in the presence of catalytic amounts of TMS-triflate at 20 C, whereas (3) and 1-O- trimethylsilyl-2, 3, 4, 6-tetra-O-benzyl-D-glucoside (2) gives mainly the aryl-α-glucosides (8).