Synthesis of benzimidazoles by Cu2O-catalyzed cascade reactions between o-haloaniline and amidine hydrochlorides
2013
Abstract An efficient Cu 2 O-catalyzed method for the synthesis of benzimidazole derivatives from amidine hydrochlorides and o -haloaniline has been developed. The cascade C–N coupling and intramolecular transamination reaction provided benzimidazole derivatives in high yields up to 90%.
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