Process for preparing glucose penta-acetate and xyclose...

Details Process for preparing glucose penta-acetate and xyclose... Process for preparing glucose penta-acetate and xyclose...

C - Chemistry, Metallurgy

07

H

260/233.2

C07H 13/04 (2006.01)

Patent

CA 1192186

Abstract of the Disclosure A cost-effective process suitable for the commercial production of the sugar acetate, glucose penta-acetate and xylose tetra-acetate is disclosed. The process com- prises a first reaction stage wherein glucose or xylose is partially acetylated with acetic acid to form glucose diacetate or xylose diacetate, followed by a second re- action stage wherein said diacetate product is fully acetylated by treatment with excess acetic anhydride to form glucose penta-acetate or xylose tetra-acetate, res- pectively. Any excess of acetic anhydride/acetic acid and by-product acetic acid can be recycled for use in the process.

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