Palladium-catalyzed intermolecular carbonylative cross-coupling of heteroaryl C(sp<sup>2</sup>)–H bonds with amines: an efficient strategy for oxidative aminocarbonylation of azoles
作者:Qi Xing、Hui Lv、Chungu Xia、Fuwei Li
DOI:10.1039/c7cc03274a
日期:——
An efficient palladium-catalyzed oxidative aminocarbonylation of azoles has been developed. This system allows for intermolecular carbonylative cross-coupling of aromatic C(sp2)–H bonds with simple amines, which has often been asked for, but has not been realized so far. It provides a straightforward approach to a variety of azol-2-amides.
Direct amidation of azoles with formamides via metal-free C–H activation in the presence of tert-butyl perbenzoate
作者:Tao He、Hongji Li、Pinhua Li、Lei Wang
DOI:10.1039/c1cc13086b
日期:——
A novel and simple method for the direct amidation of azoles with formamides has been developed. The reaction could occur smoothly in the presence of tert-butyl perbenzoate (TBPB) as an oxidant under metal- and base-free conditions. Direct dehydrogenativecross-coupling of formamides and azoles generated the corresponding products in good yields.