Versatile palladium-catalyzed double carbonylation of aryl bromides
作者:Chaoren Shen、Cornel Fink、Gabor Laurenczy、Paul J. Dyson、Xiao-Feng Wu
DOI:10.1039/c7cc07412c
日期:——
A versatile palladium-catalyzed double carbonylation of aryl bromides has been developed. Using Pd(OAc)2/BuPAd2 as the catalyst system and DBU as the base, under relatively low COpressure, various α-ketoamides were produced in good yields. In order to get insight into the reaction pathway, real time NMR studies were performed as well and a correlated reaction mechanism is been given.
Cu(OAc)2 and acids promoted the oxidative cleavage of α-aminocarbonyl compounds with amines: efficient and selective synthesis of 2-t-amino-2-imino-carbonyl and 2-amino-2-oxocarbonyl
method for the synthesis of 2-t-amino-2-imino-carbonyl (C) and 2-amino-2-oxocarbonyl (D) compounds has been discovered through a copper-promoted oxidating amidation reactions between α-amino -carbonyl compounds and amines. Promoted by the crucial copper species, perfect selectivity and good to excellent yields could be achieved. This transformation is achieved through CN bond oxidative cleavage and formation