Journal of the Brazilian Chemical Society | |
A kinetic study of candida rugosa lipase-catalyzed synthesis of 4,6-dimethyl-3-cyano-2-pyridone | |
Nevena Ž Prlainović1  Dejan I. Bezbradica1  Zorica D. Knežević-jugović1  Roksana T. Kozlowska1  Dušan Ž. Mijin1  | |
[1] ,Faculty of Technology and MetallurgyBelgrade,Serbia | |
关键词: Candida rugosa lipase; ping-pong kinetics; cyanoacetamide inhibition; acetylacetone; pyridon; | |
DOI : 10.1590/S0103-50532010001200016 | |
来源: SciELO | |
【 摘 要 】
The synthesis of 4,6-dimethyl-3-cyano-2-pyridone was studied in a reaction catalyzed with Candida rugosa lipase. A response surface methodology (RSM) was applied for the optimization of the experimental conditions. The study showed that temperature and molar ratio cyanoacetamide/acetylacetone have a great influence on the yield of the reaction; the maximum yield was achieved at 44 ºC with a molar ratio cyanoacetamide/acetylacetone of 36. The kinetics of the enzymatic synthesis of 4,6-dimethyl-3-cyano-2-pyridone was investigated, and it was determined that a ping-pong bi-ter mechanism with cyanoacetamide inhibition fits the obtained results. The mechanism of lipase-catalyzed reaction was proposed.
【 授权许可】
CC BY
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License
【 预 览 】
Files | Size | Format | View |
---|---|---|---|
RO202005130106367ZK.pdf | 873KB | download |