Preparation of N-unsubstituted β-ketoamides by Rhodococcus rhodochrous-catalysed hydration of β-ketonitriles
作者:Vicente Gotor、Ramón Liz、Ana Mª Testera
DOI:10.1016/j.tet.2003.10.096
日期:2004.1
N-unsubstituted β-ketoamides, hardly obtainable or non-accessible by non-enzymatic methods, have been synthesized, with good to excellent yields, by the generally fast hydration of the corresponding β-ketonitriles, catalysed by the bacterium Rhodococcus rhodochrous IFO 15564. This bacterium shows nitrile hydratase and amidase activities, the latter being inhibited during its growth phase with diethyl phosphoramidate
通过由红球菌属细菌催化的相应的β-酮腈的一般快速水合,已经合成了各种不同的N-未取代的β-酮酰胺,它们很难通过非酶方法获得或无法通过非酶促方法获得。球菌IFO 15564.这种细菌节目腈水合酶和酰胺酶活性,后者在用二氨基磷酸酯(DEPA)其生长阶段抑制。还进行了有关大规模生物转化的工艺和研究的优化。β-酮酰胺以酮-烯醇混合物形式存在,其组成取决于其取代基,并随溶剂极性而变化。