Lipase/Ruthenium-Catalyzed Dynamic Kinetic Resolution of Hydroxy Acids, Diols, and Hydroxy Aldehydes Protected with a Bulky Group
作者:Mahn-Joo Kim、Yoon Kyung Choi、Min Young Choi、Mi Jung Kim、Jaiwook Park
DOI:10.1021/jo0156417
日期:2001.6.1
Ionic Liquid-Coated Enzyme for Biocatalysis in Organic Solvent
作者:Jae Kwan Lee、Mahn-Joo Kim
DOI:10.1021/jo026116q
日期:2002.9.1
Ionic liquid-coated enzyme (ILCE) is described as a useful catalyst for biocatalysis in organic solvent. An ionic liquid, [PPMIM]-[PF6] (1, [PPMIM] = 1-(3'-phenylpropyl)-3-methylimidazolium), which is solid at room temperature and becomes liquid above 53 degreesC, was synthesized in two steps from N-methylimidazole. The coating of enzyme was done by simply mixing commercially available enzyme with 1 in the liquid phase above 53 degreesC and then allowing the mixture to cool. A representative ILCE, prepared with a lipase from Pseudomonas cepacia, showed markedly enhanced enantioselectivity without losing any significant activity.