<scp>L</scp>-Proline-Catalyzed Activation of Methyl Ketones or Active Methylene Compounds and DMF-DMA for Syntheses of (2<i>E</i>)-3-Dimethylamino-2- propen-1-ones
作者:Dinesh Kumar、Damodara N. Kommi、Pradeep Chopra、Md Imam Ansari、Asit K. Chakraborti
DOI:10.1002/ejoc.201200778
日期:2012.11
place in the reaction of methyl ketones or active methylene compounds with DMF-DMA (N,N-dimethylformamide dimethyl acetal). L-Proline serves as an efficient organocatalyst in the covalent and noncovalent synchronous mode for the ambiphilic activation of various aryl, heteroaryl, and styryl methyl ketones, cyclic ketones, and 1,3-diketones with DMF-DMA to achieve the convenient syntheses of the versatile
据报道,在甲基酮或活性亚甲基化合物与 DMF-DMA(N,N-二甲基甲酰胺二甲基乙缩醛)反应中发生亲核和亲电双重活化的级联有机催化。L-脯氨酸在共价和非共价同步模式下作为一种有效的有机催化剂,用于各种芳基、杂芳基和苯乙烯基甲基酮、环酮和 1,3-二酮与 DMF-DMA 的两亲性活化,以实现方便的合成多功能合成子 (2E)-1-芳基/杂芳基/苯乙烯基-3-(二甲氨基)-2-丙烯-1-酮、(E)-α-[(二甲氨基)甲叉]环烷酮和(E)-2-(在无溶剂条件下以高产率制备二甲氨基)甲亚基-1,3-二酮。