Cyclization of o-phenylenediamines by CO<sub>2</sub>in the presence of H<sub>2</sub>for the synthesis of benzimidazoles
Bo Yu(Beijing National Laboratory for Molecular Sciences), Hongye Zhang(Institute of Chemistry), Yanfei Zhao(Institute of Chemistry), Sha Chen(Institute of Chemistry), Jilei Xu(Institute of Chemistry), Changliang Huang(Institute of Chemistry), Zhimin Liu(Chinese Academy of Sciences)
Cited by 110
Abstract
The cyclization of o-phenylenediamines by CO2 in the presence of H2 was presented to directly synthesize benzimidazoles, and a series of benzimidazoles were obtained in excellent yields using RuCl2(dppe)2 as the catalyst.
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