Selected Electrosynthesis of 3-Aminopyrazoles from α,β-Alkynic Hydrazones and Secondary Amines

文献类型: 外文期刊

第一作者: Tang, Dong

作者: Tang, Dong;Zhang, Wei;Ji, Jingwen;Jiang, Rui;Wan, Yaya;Zhou, Pengjuan;Ma, Wei

作者机构:

期刊名称:JOURNAL OF ORGANIC CHEMISTRY ( 影响因子:3.6; 五年影响因子:3.4 )

ISSN: 0022-3263

年卷期: 2024 年 89 卷 9 期

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收录情况: SCI

摘要: An available and simple electromediated cyclization method for 3-amino-substituted pyrazoles by using alpha,beta-alkynic hydrazone and secondary amine is described. The strategy utilizes KI as an electrolyte in an undivided cell with a constant current, generating the desired products in moderate-to-good yield. The method features selective amination at the 3-position of the pyrazole skeleton. The results indicate that alpha,beta-alkynic hydrazones functionalized with aromatic groups and secondary amines functionalized with electron-rich groups were better tolerated in this transformation.

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