Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing oxygen-containing organic compound
Patent
1990-07-30
1991-08-06
Lilling, Herbert J.
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing oxygen-containing organic compound
435174, 43525234, 4352533, 435874, C12P 744, C12R 138
Patent
active
050377485
ABSTRACT:
A process for producing cis-4,5-dihydro-4,5-dihydroxyphthalic acid which comprises producing cis-4,5-dihydro-4,5-dihydroxyphthalic acid and/or a salt thereof from phthalic acid and/or a salt thereof using a microorganism whose activity to decompose cis-4,5-dihydro-4,5-dihydroxyphthalic acid and/or a salt thereof has disappeared or diminished, acidifying the product system unless it is acidic, and then extracting therefrom cis-4,5-dihydro-4,5-dihydroxyphthalic acid with such an organic solvent that it is miscible with water in any proportion and the mixture of the organic solvent with water can be separated into two layers upon adding a salt thereto, in the presence of a salt, or with an alcohol having 4 carbon atoms. The process enables one to produce cis-4,5-dihydro-4,5-dihydroxyphthalic acid from phthalic acid and/or its salt in a high yield.
REFERENCES:
Biotech Abstracts 88-00416 BIOCED (Biocataylsis), 1987, 1,1,37-46, Martin et al.
Environmental Health Perspectives, vol. 18, 159-166 (176), Keyser et al.
The Journal of Biological Chem., vol. 262, No. 4, 2/05/87, 1510-1518, Batte et al.
J. Am Chem Soc (1986), vol. 108, pp. 8311-8313, Lu et al.
Chemical Abstracts (1988), vol. 108:113063q, Apr. 4, 1988, Wudl.
Adachi Norihiko
Fukuta Miki
Kariya Masao
Kodama Tohru
Masukawa Tohru
Japan Synthetic Rubber Co. Ltd.
Lilling Herbert J.
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