Preparation and characterization of Cu based on 5,5'-bistetrazole as a recyclable metal-organic framework and application in synthesis of diaryl ether by the Ullmann coupling reaction

Cu based on 5,5 '-bistetrazole ([Cu2BT center dot 2H(2)O](n)) as a recyclable metal-organic framework (MOF) heterogeneous catalyst was characterized by FT-IR, C-13 NMR, XRD, SEM, EDX, BET, BJH, and ICP-AES analysis. The catalytic activity of the catalyst was probed through the Ullmann reaction for synthesis of diaryl ether derivatives from two component reactions of aromatic arylhalides and phenol derivatives in DMSO. Simple procedure, high yields, short reaction time, and environmentally benign methods are advantages of this protocol. The catalyst was readily separated by simple filtration and reusable without significant loss of its catalytic efficiency. [GRAPHICS] .

Automated summary

The Cu-based MOF catalyst using 5,5'-bistetrazole showed efficient catalytic activity in the Ullmann reaction for synthesizing diaryl ether derivatives in DMSO. The protocol offers advantages of simplicity, high yields, short reaction time, and environmentally friendly methods, with the catalyst being readily separable by filtration and reusable without significant loss of catalytic efficiency.