Process for the stereoselective esterification of ascorbic or er

Details Process for the stereoselective esterification of ascorbic or er Process for the stereoselective esterification of ascorbic or er

1993-09-07

1995-10-03

Knode, Marian C.

Chemistry: molecular biology and microbiology

Process of utilizing an enzyme or micro-organism to destroy...

Resolution of optical isomers or purification of organic...

435126, 435176, 435177, C12P 4100

Patent

active

054551749

ABSTRACT:
An organic acid ester of ascorbic acid or erythorbic acid is produced by reacting ascorbic acid or erythorbic acid with an organic acid enol ester in an organic solvent with a solubility of ascorbic acid or erythorbic acid of more than 0.3% at 25.degree. C. in the presence of an active lipase.

REFERENCES:
patent: 3770588 (1973-11-01), Forgione
patent: 4525457 (1985-06-01), Sakata et al.
patent: 4873194 (1989-10-01), Sawamura et al.
patent: 5079153 (1992-01-01), Enomoto et al.
Wang, Y., J. Am. Chem Soc. 110:7200-05 (1988).
Patent Abstracts Of Japan, vol. 16, No. 63, (C-911) [5106], Feb. 18, 1992, & JP-A-3-259089, Nov. 19, 1991, K. Enomoto, et al., "Production Of Organic Acid Ester".

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