A facile and high-yielding protocol for diverse benzotriazoles through intramolecular N-arylation of different o-chloro-1,2,3-benzotriazenes using CuI/Cs(2)CO(3) has been developed.
Facile route for N(1)-aryl benzotriazoles from diazoamino arynes via CuI-mediated intramolecular N-arylation