1612227-86-7Relevant articles and documents
N-Heterocyclic carbene copper(i) complex-catalyzed synthesis of 2-aryl benzoxazoles and benzothiazoles
Urzúa, Julio I.,Contreras, Renato,Salas, Cristian O.,Tapia, Ricardo A.
, p. 82401 - 82408 (2016)
A new and efficient synthesis of 2-arylbenzoxazoles and benzothiazoles using a copper N-heterocyclic carbene complex is described. In a simple protocol a variety of 2-substituted benzoxazoles and benzothiazoles were obtained via intramolecular coupling cyclization of 2-haloanilides/2-halothioanilides in good to excellent yields.