7724-48-3Relevant articles and documents
Electrochemical Synthesis of Benzo[ d]imidazole via Intramolecular C(sp3)-H Amination
Li, An,Li, Caohui,Li, Lijun,Liu, Yu,Tang, Kewen,Yang, Tao,Yang, Zan,Zhou, Congshan
, (2022/01/03)
An electrochemical dehydrogenative amination for the synthesis of benzimidazoles was developed. This electrosynthesis method could address the limitations of the C(sp3)-H intramolecular amination synthesis reaction and provide novel access to obtain 1,2-disubstituted benzimidazoles without transition metals and oxidants. Under undivided electrolytic conditions, various benzimidazole derivatives could be synthesized, exhibiting functional group tolerance.
Synthesis of rutaecarpine alkaloids: Via an electrochemical cross dehydrogenation coupling reaction
Li, Qian-Yu,Cheng, Shi-Yan,Tang, Hai-Tao,Pan, Ying-Ming
supporting information, p. 5517 - 5520 (2019/10/28)
Substrates are directly oxidized at the anode without using any metal catalyst and oxidant to obtain a series of nitrogen heterocyclic compounds, including benzimidazoles and quinolinones. These compounds are highly tolerant to various functional groups and heterocycle-containing substrates. In addition, natural alkaloids, such as rutaecarpine and deoxyvasicinone, can be synthesized by this method.
BENZIMIDAZOLE COMPOUND AND SYNTHESIS METHOD THEREOF
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Paragraph 0034, (2017/08/08)
PROBLEM TO BE SOLVED: To provide a novel benzimidazole compound having tetracyclic condensed ring and a synthesis method thereof. SOLUTION: A benzimidazole compound is represented by the formula (I). A method for synthesizing the benzimidazole compound represented by the formula (I) includes the step of reacting ortho-phenylene diamine and a lactone compound and further reacting the resulting benzimidazole compound with the lactone compound. In the formula, R1 and R4 are each independently H, a methyl group or an ethyl group excluding that two of R4 are ethyl groups or methyl groups at same time, R2 and R3 are each independently H or a methyl group, m and n are integers of 1 to 2 and n is 1 when m is 2. SELECTED DRAWING: None COPYRIGHT: (C)2017,JPOandINPIT