Process for the direct production of alkyl glycosides

Details Process for the direct production of alkyl glycosides Process for the direct production of alkyl glycosides

C - Chemistry, Metallurgy

07

H

260/227

C07H 15/04 (2006.01)

Patent

CA 1338237

Surface-active alkyl glycosides, ie. the acetals of sugars and aliphatic alcohols, are produced by a direct acid- catalyzed reaction of the alcohol with the saccharide with elimination of water. Light coloured and alkali-stable akyl glucosides are produced by acetialization of higher aliphatic primary alcohols with glycoses, particularly glucose, in the presence of an acidic catalyst. The aliphatic alcohol is present in a molar acess in relation to the glycosis. Water of the reaction is rapidly removed under reduced pressure and elevated reaction temperatures. The catalystis neutralized with a base, excess alcohol is removed by distillation and conversion of the reaction product into an aqueous paste, and the paste is subsequently bleached.

614415

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