SOLVENT EFFECTS ON AN ENZYMATIC ESTER SYNTHESIS IN SUPERCRITICAL CARBON-DIOXIDE

被引:40
作者
IKUSHIMA, Y
SAITO, N
YOKOYAMA, T
HATAKEDA, K
ITO, S
ARAI, M
BLANCH, HW
机构
[1] TOHOKU UNIV, INST CHEM REACT SCI, SENDAI, MIYAGI 980, JAPAN
[2] UNIV CALIF BERKELEY, DEPT CHEM ENGN, BERKELEY, CA 94720 USA
关键词
D O I
10.1246/cl.1993.109
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The ester synthesis from oleic acid and (+/-)-citronellol by lipase was carried out in supercritical carbon dioxide(SC-CO2). In the near-critical region, the rate of reaction was considerably enhanced and (S)-(-)-oleic acid 3,7-dimethyl-6-octenyl ester was stereoselectively formed. The results were discussed with taking account of solvent properties of SC-CO2 and aggregation phenomenon about reacting species at high pressures.
引用
收藏
页码:109 / 112
页数:4
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