作者:Maciej Adamczyk、Jonathan Grote、Sushil Rege
DOI:10.1016/s0957-4166(97)00270-x
日期:1997.8
α-hydroxyamides via the Pseudomonas cepacia lipase catalyzed amidation of α-hydroxyesters in non-aqueous media is described. Reactivities of α-hydroxy benzyl esters are excellent, resulting in rapid conversions to good yields of α-hydroxyamides, while ethyl and methyl esters react more slowly, and some hindered esters show no reactivity under the conditions studied. Some benzyl esters react stereoselectively
描述了一种通过假单胞菌脂肪酶催化α-羟基酯在非水介质中酰胺化合成α-羟基酰胺的新方法。α-羟基苄基酯的反应性极好,可快速转化为高产率的α-羟基酰胺,而乙基和甲基酯的反应则更慢,某些受阻酯在所研究的条件下无反应性。一些苄基酯发生立体选择性反应,产生极佳的不对称α-羟基酰胺收率。