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Titolo:
STEREOSPECIFIC HYDROLYSIS OF 3-(4-METHOXYPHENYL)GLYCIDIC ESTER IN SUPERCRITICAL CARBON-DIOXIDE BY IMMOBILIZED LIPASE
Autore:
RANTAKYLA M; ALKIO M; AALTONEN O;
Indirizzi:
VTT CHEM TECHNOL,SUPERCRIT TECHNOL,POB 1401 FIN-02044 ESPOO FINLAND VTT CHEM TECHNOL,SUPERCRIT TECHNOL FIN-02044 ESPOO FINLAND
Titolo Testata:
Biotechnology letters
fascicolo: 9, volume: 18, anno: 1996,
pagine: 1089 - 1094
SICI:
0141-5492(1996)18:9<1089:SHO3EI>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
ESTERIFICATION; FLUIDS; CO2;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
18
Recensione:
Indirizzi per estratti:
Citazione:
M. Rantakyla et al., "STEREOSPECIFIC HYDROLYSIS OF 3-(4-METHOXYPHENYL)GLYCIDIC ESTER IN SUPERCRITICAL CARBON-DIOXIDE BY IMMOBILIZED LIPASE", Biotechnology letters, 18(9), 1996, pp. 1089-1094

Abstract

In the hydrolysis of racemic 3-(4-methoxyphenyl)glycidic acid methyl ester by immobilized Mucor miehei lipase in supercritical CO, the initial hydrolysis rate of the (2S,3R)-form was faster than the rate of the (2R,3S)-form. The stereoisomeric excess of the (2R,3S)-form reached 87% at 53% total conversion level. The water content of the reaction mixture and the initial concentration of the 3-(4-methoxyphenyl) glycidic acid methyl ester had no effect on isomeric purity. The reaction rate in supercritical CO2 was considerably faster than in toluene/water-mixture.

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Documento generato il 26/09/20 alle ore 18:20:30