Novel Preparation of 6-O-Acyl Chlorosucrose from Anhydrous Cholorinated Reaction Mass
OwnerRakesh Ratnam, Sundeep Aurora +1inventors
InventorsRakesh Ratnam, Sundeep Aurora, Srikanth Kulkarni
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Abstract
A process is described for production of a chlorinated sucrose from a process stream containing a 6-O-protected chlorinated sucrose derived from chlorination of 6-O-protected sucrose wherein the process stream is treated under conditions which prevent or reverse deacylation of 6-O-protected chlorinated sucrose, extracting the same in a solvent, washing most of the dimethylformamide free from the solvent extract by repeated washing with saturated sodium chloride solution, isolating the 6-O-protected sucrose as a pure fraction and obtaining a chlorinated sucrose by deacylating the same.
Claims5
1-4. (canceled)
A process of production of a chlorinated sucrose from a process stream comprising purification of 6-O-protected chlorinated sucrose from a solution and its subsequent deacylation and isolation of the chlorinated sucrose wherein the said solution is substantially anhydrous and the said process comprising one or more of following steps:
- a. an acidic process stream containing 6-O-protected sucrose having pH below 5 is neutralized under anhydrous condition by a mild alkali preventing the pH to go beyond 7, more preferably between 5 to 6,
- b. preferably chlorinated sucrose formed in a process prior to purification of the said anhydrous solution of 6-O-protected chlorinated sucrose, including a process of neutralization of an acidic solution having pH below 5, is acylated by treating with an acylating agent to produce 6-acyl chlorinated sucrose.
Dependencies are inferred from the claim text.