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Titolo:
ENANTIOSELECTIVE ESTERIFICATION OF IBUPROFEN IN SUPERCRITICAL CARBON-DIOXIDE BY IMMOBILIZED LIPASE
Autore:
RANTAKYLA M; AALTONEN O;
Indirizzi:
TECH RES CTR FINLAND,POB 1401 SF-02044 ESPOO FINLAND
Titolo Testata:
Biotechnology letters
fascicolo: 8, volume: 16, anno: 1994,
pagine: 825 - 830
SICI:
0141-5492(1994)16:8<825:EEOIIS>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
CATALYZED ESTERIFICATION; FLUID;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
23
Recensione:
Indirizzi per estratti:
Citazione:
M. Rantakyla e O. Aaltonen, "ENANTIOSELECTIVE ESTERIFICATION OF IBUPROFEN IN SUPERCRITICAL CARBON-DIOXIDE BY IMMOBILIZED LIPASE", Biotechnology letters, 16(8), 1994, pp. 825-830

Abstract

The enantioselective esterification of racemic Ibuprofen with n-propanol by immobilized Mucor miehel lipase In supercritical carbon dioxidewas studied. The enantiomeric excess of the product (sep) was 70 % at15...20 % conversion. The enantioselectivity was faintly affected by temperature and the concentration of ibuprofen and lipase. The optimumtemperature was 45 degrees C. The initial reaction rate increased with pressure, but enantioselectivity was not affected by pressure changes. The reaction rates In supercritical carbon dioxide at optimized conditions and in n-hexane were similar.

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Documento generato il 26/09/20 alle ore 02:34:00