28154-13-4Relevant academic research and scientific papers
THERMAL GLYCOSIDATION WITH BENZYLATED GLYCOSYL CHLORIDES: A VERY SIMPLE PROCEDURE FOR O-GLYCOSIDATION
Nishizawa, Mugio,Kan, Yukiko,Yamada, Hidetoshi
, p. 565 - 567 (2007/10/02)
Thermal condensation of benzylated glucosyl chlorides with a variety of alcohols has been achieved efficiently without using any metal salts via a simple operation, and the procedure is used not only for a glucosyl halide, but also for a xylosyl chloride. KEYWORDS O-glycosidation; thermal glycosidation; glucosyl chloride; xylosyl chloride; disaccharide
SYNTHESIS OF TRITERPENE AND STEROID GLYCOSIDES
Uvarova, Nina I.,Atopkina, Lyubov N.,Elyakov, Georgi B.
, p. 33 - 42 (2007/10/02)
The glycosylation of cholesterol, β-sitosterol, 28-O-acetylbetulin, and betulin with acylated glycosyl halides in the presence of Hg(OAc)2, Hg(CN)2, CdCO3, Ag2O, Ag2CO3, and HgO + HgBr2 usually gives acylated αβ-glycosides accompanied by acetates, ethers, and bromo and unsaturated derivatives of the initial alcohols.The use of Hg(CN)2 gave mainly β anomers (40-87percent), whereas α anomers preponderated when Hg(OAc)2 was the catalyst.When there was a deficiency of hydrogen halide acceptor and in the presence of the acidic catalyst HgBr2*HBr, the β anomer, produced initially, underwent anomerisation.Cholesteryl α-D-glucopyranoside tetra-acetate (48percent) was obtained by anomerisation of the β anomer.
