Synthesis of 2,5,6-Trisubstituted Benzimidazoles by Heck and Subsequent 6 pi-Electrocyclization-Dehydrogenation Reactions of 2,4,5-Tribromo-N-methylimidazole and 2-Aryl-4,5-dibromo-N-methylimidazoles

[摘要]：2,5,6-Trisubstituted benzimidazoles were prepared by Heck reactions of 2,4,5-tribromo-N-methylimidazole and 2-aryl-4,5-dibromo-N-methyl-imidazoles and subsequent 6 pi-electrocyclization-dehydrogenation reactions.

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