Gram-Scale Synthesis of Cu(II)@COF via Solid-State Coordination Approach for Catalysis of Alkyne-Dihalomethane-Amine Coupling

A novel covalent organic framework material COF-DM, which contains chelating coordination environments, was synthesized at the gram level under mild conditions. In addition, its Cu(II)-loaded complex of Cu(II)@COF-DM was prepared by impregnating COF-DM in an acetonitrile solution of CuCl2 via a solid-state coordination approach. The obtained Cu(II)-loaded Cu(II)@COF-DM can be used as a highly active heterogeneous catalyst to catalyze the alkyne-dihalomethane-amine coupling reactions.