Process for the preparation of 4,1',6'-trichloro-4,1',...

Details Process for the preparation of 4,1',6'-trichloro-4,1',... Process for the preparation of 4,1',6'-trichloro-4,1',...

C - Chemistry, Metallurgy

07

H

260/233

C07H 5/02 (2006.01)

Patent

CA 1152983

ABSTRACT 4,1',6'-trichloro-4,1',6'-trideoxygalactosucrose is prepared by a process including the steps of: (a) isomerising 2,3,4,3',4'-penta-O-acetyl sucrose to 2,3,6,3',4'-penta- O-acetyl sucrose; (b) chlorinating the isomerised acetate at the 4,1' and 6'-positions; and (c) deacetylating the resulting chlorinated product; the isomerisation step (a) being effected by treating a solution of 2,3,4,3',4'-penta-O-acetyl sucrose in an inert solvent with a weak acid at an elevated temperature.

366862

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