Deacylation of sucralose-6-acylates
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United States of America Patent
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Issued Date -
Sep 18, 2008
app pub date -
Dec 20, 2007
filing date -
Jan 19, 2007
priority date (Note) -
Abandoned
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Abstract
A method of making sucralose includes maintaining a solution of a sucralose-6-acylate in an aqueous solvent at a temperature in a range from -20.degree. C. to 20.degree. C. and at a pH of at least 12.2 and less than 14.0 for a period of time sufficient to deacylate substantially all of the sucralose-6-acylate. The method may employ purified sucralose-6-acylate as the starting material, or the sucralose-6-acylate may be present in a quenched reaction mixture resulting from chlorination of a sucrose-6-acylate. The quenched reaction mixture may be exposed to deacylation conditions either before or after removal of a tertiary amide that may be present in it. Sucralose is subsequently recovered to complete the process.
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