Copper-Mediated Amidation of Heterocyclic and Aromatic C−H Bonds
作者:Qiu Wang、Stuart L. Schreiber
DOI:10.1021/ol902079g
日期:2009.11.19
A copper-mediated aerobic coupling reaction enables direct amidation of heterocycles or aromatics having weakly acidic C−H bonds with a variety of nitrogennucleophiles. These reactions provide efficient access to many biologically important skeletons, including ones with the potential to serve as inhibitors of HMTs.
2-Aminobenzimidazole and -benzoxazole as N-nucleophile in palladium-catalysed aminocarbonylation
作者:Máté Gergely、Attila Bényei、László Kollár
DOI:10.1016/j.tet.2020.131079
日期:2020.4
Palladium-catalysed aminocarbonylation of aryl iodides in the presence of 2-aminobenzimidazole and 2-aminobenzoxazole as N-nucleophile was carried out. Single CO insertion took place, however, instead of the expected carboxamides (C(O)NH) the corresponding N-acyl-imine (C(O)NC) derivatives were obtained. The structure of the latter compounds can be explained by tautomerization involving the heterocyclic