Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1997-12-22
1999-11-23
Keys, Rosalynd
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
562840, C07C 53128, C07C 5160
Patent
active
059903511
ABSTRACT:
A process for recovering 2,2-dimethylpropanoic acid in highly pure form from a mixture of 2,2-dimethylpropanoic acid and impurities which may be obtained in the production of a beta lactam antibiotic, by degrading impurities and separating off the volatile fragments.
REFERENCES:
patent: 2255421 (1941-09-01), Groll et al.
patent: 4770821 (1988-09-01), Miyazawa et al.
patent: 5202462 (1993-04-01), Yazawa et al.
Aldrich Chemical Company Catalog, p. 1480, 1996.
Alfa Catalog Research Chemicals and Accessories, p. 405, 1993-1994.
Cabre Joan
Centellas Victor
Diago Jose
Esteve Asuncion
Serrat Joan
Biochemie GmbH
Keys Rosalynd
McNally Lydia T.
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