Novel stereoselective glycosidation by the combined use of trityl halide and Lewis acid.
نویسندگان
چکیده
منابع مشابه
Lewis acid-catalyzed stereoselective lactonization and subsequent glycosidation of 2-C-malonyl carbohydrates.
Gold(III) bromide is a suitable catalyst for the stereoselective cyclization of 2-C-malonyl carbohydrates to the anomeric center under retention of one ester group. Reopening of the lactones with alcohols in the presence of TMSOTf affords allyl, propargyl and benzyl glycosides with high α-selectivity.
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1990
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.38.3280