Process for the preparation of glycosides

C - Chemistry – Metallurgy – 07 – H

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C07H 15/04 (2006.01) C07H 15/10 (2006.01) C07H 15/18 (2006.01) C07H 15/203 (2006.01)

Patent

CA 2077410

FL/6-18776/A Process for the preparation of glycosides Abstract of the Disclosure The invention relates to a process for the preparation of glycosides by reacting protected sugars carrying an anomeric hydroxyl group with an aglycon selected from the group consisting of alcohol, thiol and a protected sugar carrying a non-anomeric hydroxyl group, in an inert solvent, in the preferred temperature range from -20 to +250°C, in the presence of catalytic amounts of metal complex salts. The glycosides are obtained in high yield. Often an excess of the .alpha.- or .beta.-form is obtained and even the pure .alpha.- oder .beta.-forms are obtainable.

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