Abstract
[Cu(tpol)]n based on the Htpol ligand [Htpol = 3H-(1,2,3)triazolo(4,5-b)pyridin-3-ol] had been synthesized and characterized using X-ray single crystal analysis, elemental analysis, powder X-ray diffraction and IR spectroscopy. Catalytic activity of [Cu(tpol)]n was measured by the coupling reaction of trifluoroacetimidoyl chlorides with terminal alkyne. The crystal shows two different coordination types of [tpol]− having a parallelogram of [Cu2O2] assembled in a trans geometry. With the change of functional groups of two types of reactants, [Cu(tpol)]n can replace the noble catalysts and selectively catalyze the coupling of derivatives of 2,2,2-trifluoro-N-phenylacetimidoyl chloride and terminal alkynes, and 6-methoxy-2-(trifluoromethyl)quinoline.
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