34595-23-8Relevant articles and documents
First Application of Heterogeneous Cobalt Catalysis in Csp2-N Cross-Coupling of Activated Chloroarenes under Ligand-Free Conditions
Mukherjee, Nirmalya,Chatterjee, Tanmay,Ranu, Brindaban C.
, p. 4018 - 4023 (2015/06/30)
A heterogeneous CoII/Al2O3 catalyst efficiently catalyses the N-arylation of N-heterocycles and open-chain secondary amines by activated chloroarenes and chloroheteroarenes under ligand-free conditions in water to give a series of functionalized tertiary amines. The catalyst was prepared by immobilizing CoBr2 onto the surface of Al2O3, and was characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, and energy-dispersive X-ray analysis. This catalyst could be recycled up to six times without any appreciable loss of catalytic activity. A heterogeneous CoII/Al2O3 catalyst efficiently catalyses the N-arylation of N-heterocycles and open- or closed-chain secondary amines by activated chloroarenes and chloroheteroarenes under ligand-free conditions in water to give a series of functionalized tertiary amines.