期刊
ACS CATALYSIS
卷 10, 期 6, 页码 3828-3831出版社
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.0c00103
关键词
C-H amination; electro-oxidization; palladium catalysis; hydrogen evolution; cyclization
资金
- National Natural Science Foundation of China [21520102003, 21702152]
- Hubei Province Natural Science Foundation of China [2017CFA010]
Transition-metal-catalyzed oxidative C- H/N-H coupling reaction is an important method to construct C-N bonds. However, stoichiometric oxidants were usually necessary. Here, we report a palladium-catalyzed electro-oxidative intra-molecular C-H/N-H annulation reaction without an external oxidant or additive. A variety of pyrido[1,2-a]benzimidazoles were constructed by a simple, green, and mild path. Experimental results suggested that Pd(0) could be oxidized on the anode to be recycled.
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