The incorporation of N -coordinated benzimidazole complexes of palladium gave high catalytic activity in the Suzuki–Miyaura coupling of aryl halides substrates. After determining the best active catalyst as 5A1, bearing the mesityl substituent on the benzimidazole ring with the Pd(II) ion, optimization studies were carried out via changing the substrate, base, time, atmosphere, and the effect of water. The DMF:H2O (4/1) and Cs2CO3 as base were found to be critical for the efficiency of the reaction yield (100%). |
