Expedient Ni-catalyzed C–H/C–H cross-dehydrogenative coupling of aryl amides with azoles

Abstract

A nickel-catalyzed C-H heteroarylation of arenes has been described using a removable oxazoline-aniline derived directing group. Utilization of inexpensive nickel(II)-catalyst, substrate scope, functional group diversity and late-stage functionalization of xanthine-derived...

Cucurbit[6]uril supported β-Ni(OH)2 nanoparticles as a heterogeneous catalyst for the synthesis of quinazolines via acceptorless dehydrogenative coupling of alcohols with nitriles

“…36 Recently, nickel salts/complexes have been extensively used in o-arylation of esters, 37 hydrogenation, dehydrogenation, cyclization, cycloaddition, and multicomponent reactions. 38,39 Nickel nanoparticles and their oxides have emerged as efficient catalysts in hydrogenolysis, 40,41 dehydrogenation, 42 condensation reactions, 43,44 reduction reactions, 45 and C-C bond formation. [46][47][48] A perusal of the literature reveals that Ni(OH) 2 NPs have been used in the field of electrocatalysis, [49][50][51][52][53] photocatalysis, [54][55][56][57] supercapacitors, [58][59][60][61] and heterogeneous catalysis, [62][63][64] yet Ni(OH) 2 NPs remain relatively less explored in the arena of catalysis.…”