A highly efficient method is described for the copper- and solvent-free coupling reaction of various aryl halides
and terminal alkynes catalyzed by polyvinyl chloride-supported palladium (II) triazole complex. The heterogeneous catalyst
used exhibits good reusability for the copper-free Sonogashira reaction.
Keywords: Copper-free, sonogashira reaction, PVC-supported catalyst, aryl halides.
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