Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1989-12-26
1992-05-12
Evans, J. E.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
560155, 560169, 560170, 560171, C07C10332, C07C10102, C07C10126, C07C10130
Patent
active
051130092
ABSTRACT:
A cyclical process for producing and isolating a mineral acid salt of an amino acid methyl ester in high purity and yield from the reaction solution produced by esterifying an amino acid with methanol in methanol in the presence of a mineral acid, by cooling the resulting reaction solution to precipitate crystals of the mineral acid salt; filtering the crystals;
REFERENCES:
patent: 2561323 (1951-07-01), Waller et al.
patent: 2738363 (1956-03-01), Gudefroi
patent: 4154956 (1979-05-01), Veda et al.
Nippon Kagaku Zasshi (Nikkashi) 83 1151-4 (1962), Jun. 29, 1989, Chemical Abstracts Abstract.
Ajioka Masanobu
Higuchi Chojiro
Katoh Toshio
Oura Takeshi
Yamaguchi Akihiro
Evans J. E.
Mitsui Toatsu Chemicals Incorporated
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