A mixture of novel benzimidazole salts (2a-f), Pd(OAc) 2 and K 2 CO 3 in DMF-H 2 O catalyzes, in high yield, the Heck crosscoupling reaction assisted by microwave irradiation in a short time. All synthesized novel benzimidazole derivatives were characterized by elemental analysis and NMR spectroscopy. In addition, the molecular structure of 2a was determined by X-ray crystallography.
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