Synthesis and microwave‐assisted catalytic activity of novel bis‐benzimidazole salts bearing furfuryl and thenyl moieties in Heck and Suzuki cross‐coupling reactions |
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| Authors: | Ülkü Y?lmaz Nihat ?ireci Selma Deniz Hasan Küçükbay |
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| Institution: | 1. In?nü University, Faculty Science and Arts, Department of Chemistry, 44280 Malatya, Turkey;2. Ad?yaman University, Faculty Science and Arts, Department of Chemistry, 02040 Ad?yaman, Turkey |
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| Abstract: | A mixture of bis‐benzimidazole salts ( 1–7 ), Pd(OAc)2 and K2CO3 in DMF ? H2O catalyzes, in high yield, the Suzuki and Heck cross‐coupling reactions assisted by microwave irradiation in a short time. In particular, the yields of the Heck and Suzuki reactions with aryl bromides were found to be nearly quantative. The synthesized bis‐benzimidazole salts ( 1 – 7 ) were identified by 1H? 13C NMR, IR spectroscopic methods and micro analysis. Copyright © 2010 John Wiley & Sons, Ltd. |
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| Keywords: | bis‐benzimidazole salt carbene palladium catalysis coupling reaction Heck coupling Suzuki coupling microwave |
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