研究了在固-液相转移催化条件下,通过烷基化,迈克尔加成和羰基加成以及甘氨酸和丙氨酸酯衍生的亚胺与苯甲醛环加成,合成短而温和高效的α-氨基酸的路线。固液相转移催化反应的关键是为各种反应物选择碱。产量取决于所用的碱。讨论了使用KOH,K 2 CO 3和Na 2 CO 3获得的结果。研究了固液PTC苄基化反应的动力学,我们提出了一种可能的固液PTC机理作为界面自动催化程序。介绍了一些α-氨基酸合成的细节。
A Convenient Stereoselective Method for Synthesis of β-Lactams Under Microwave Irradiation with [BmIm] OH as a Reusable Ionic Liquid
作者:Souhila Bendeddouche、Choukry K. Bendeddouche、Hadj Benhaoua
DOI:10.2174/1570178618666210901142356
日期:2021.12
A promoted synthetic protocol for the β-lactams synthesis in the presence of [BmIm]OH as a basic reagent under microwaveirradiation [M.W.I.] is described. The reaction was highly diastereoselective. In all cases, this protocol provided trans-β-lactams as major isomers, and β-lactams were obtained with good yields. Further, the effect of the order of addition of the reagents was particularly investigated;