COPPER(II) AND MAGNESIUM(II) CONTAINING HETEROMETALLIC CARBOXYLATE FRAMEWORK: EFFICIENT HETEROGENEOUS CATALYTIC SYSTEM FOR AROMATIC N-ARYLATION

A 2D copper and magnesium-containing heterometallic carboxylate framework have been synthesized hydrothermally and characterized by single-crystal X-ray diffraction analysis and other physicochemical methods. The compound shows excellent catalytic activity in the N-arylation reaction of nitrogen-containing heterocycles with aryl bromides in acetonitrile medium at 80 ºC in the presence of Cs2CO3. The compound, which behaves as heterogeneous catalysts, can easily be recovered and reused without significant catalyst deactivation due to either leaching of active species or degradation of the structure. In the framework compound, copper acts as an active center for the catalytic reaction, whereas magnesium promotes the activity of the catalyst