Efficient and green catalytic system incorporating new benzimidazolium salts for the Sonogashira cross‐coupling reaction |
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| Authors: | Kemal Yavuz Hasan Küçükbay |
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| Affiliation: | Faculty of Arts and Sciences, Department of Chemistry, ?n?nü University, Malatya, Turkey |
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| Abstract: | A number of novel benzimidazole salts were synthesized and their structures were determined using 1H NMR, 13C NMR and infrared spectroscopic techniques and elemental analysis. A catalyst system consisting of Pd(OAc)2 and copper nanoparticles in the presence of Cs2CO3 and incorporating the novel benzimidazole salts in poly(ethylene glycol) solvent significantly improved the yields of Sonogashira reactions between aryl halides and phenylacetylene under microwave irradiation in 10 min. |
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| Keywords: | benzimidazole salts copper nanoparticles cross‐coupling homocoupling microwave Sonogashira reaction |
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