Add time:09/25/2019 Source:sciencedirect.com
Lipases from Candida rugosa, Candida antartica B and Carica papaya are employed as the biocatalyst for the hydrolytic resolution of methyl 2-fluoro-2-arylpropionates in water-saturated isooctane, in which excellent to good enantioselectivity without the formation of byproducts is obtained for the papaya lipase when using (R,S)-2-fluoronaproxen methyl ester (1) and methyl (R,S)-2-fluoro-2-(4-methoxyphenyl)propionate (2), but not methyl (R,S)-2-fluoro-2-(naphth-1-yl)propionate (3) as the substrates. The thermodynamic analysis indicates that the enantiomer discrimination for the papaya lipase is driven by the difference in activation enthalpy for compound 1, 2 or (R,S)-naproxen methyl ester (4). The kinetic analysis also demonstrates that in comparison with (S)-4, the insertion of the 2-fluorine moiety in (R)-1 has increased k2, but not Km, and consequently the lipase activity.
We also recommend Trading Suppliers and Manufacturers of METHYL 3-(4-METHOXYPHENYL)PROPIONATE (cas 15823-04-8). Pls Click Website Link as below: cas 15823-04-8 suppliers
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View