A mild,simple and efficient method for selectiveα-monobromination of 1,3-diketones and β-ketoesters using pyridinium bromochromate  

作　　者：Yaghoub Sarrafi Marzieh Sadatshahabi Kamal Alimohammadi 

机构地区：[1]Department of Chemistry,Mazandaran University,Babolsar,Iran

出　　处：《Chinese Chemical Letters》2009年第4期393-396,共4页中国化学快报（英文版）

基　　金：support from the Research Council of Mazandaran University

摘　　要：Pyridinium bromochromate has been found to be a highly efficient and selective reagent for the α-monobromination of 1,3- diketones and β-keto-esters in the absence of base, Lewis acid, or other catalyst. The products were formed in high to excellent yields under mild reaction conditions and in short reaction times.Pyridinium bromochromate has been found to be a highly efficient and selective reagent for the α-monobromination of 1,3- diketones and β-keto-esters in the absence of base, Lewis acid, or other catalyst. The products were formed in high to excellent yields under mild reaction conditions and in short reaction times.

关 键 词：α-Monobromination β-Ketoesters Pyridinium bromochromate 1 3-Diketones 

分 类 号：O621.25[理学—有机化学]