Ionic liquids for enhancing the enantioselectivity of isolated BVMO-catalysed oxidations
作者:Cristina Rodríguez、Gonzalo de Gonzalo、Marco W. Fraaije、Vicente Gotor
DOI:10.1039/c0gc00560f
日期:——
The present study describes the first-time usage of an isolated thermostable Baeyer–Villiger monooxygenase (phenylacetone monooxygenase, PAMO) in the presence of ionic liquids. The stability, activity and selectivity of PAMO as an oxidative enzyme in the presence of different ionic liquids were studied. This revealed that the addition of some specific ionic liquids, such Ammoeng™ 102 and [bmim]MeSO4, can significantly enhance the E-value in the oxidation of racemic benzylketones. Moreover, the use of ionic liquids increases the optimal substrate concentration for performing Baeyer–Villiger oxidation, thereby extending the biocatalytic repertoire of PAMO for synthetic applications.
本研究首次报道了在离子液体存在下使用分离的耐热贝耶尔-维利格单氧合酶(苯丙酮单氧合酶,PAMO)的情况。研究了不同离子液体存在下,PAMO作为氧化酶的稳定性、活性和选择性。结果显示,添加某些特定离子液体,如Ammoeng™ 102和[bmim]MeSO4,可以显著提高消旋苯甲酮氧化反应的E值。此外,离子液体的使用提高了进行贝耶尔-维利格氧化反应的最佳底物浓度,从而扩大了PAMO在合成应用中的生物催化范围。