Selected Electrosynthesis of 3-Aminopyrazoles from α,β-Alkynic Hydrazones and Secondary Amines
文献类型： 外文期刊
作者： Tang, Dong 1 ; Zhang, Wei 1 ; Ji, Jingwen 1 ; Jiang, Rui 1 ; Wan, Yaya 1 ; Ma, Wei 2 ; Zhou, Pengjuan 1 ;
作者机构： 1.Ningxia Acad Agr & Forestry Sci, Inst Agr Resources & Environm, Yinchuan 750004, Peoples R China
2.Ningxia Med Univ, Sch Basic Med Sci, Yinchuan 750004, Peoples R China
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
页码：
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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