Selected Electrosynthesis of 3-Aminopyrazoles from α,β-Alkynic Hydrazones and Secondary Amines
作者:Dong Tang、Wei Zhang、Jingwen Ji、Rui Jiang、Yaya Wan、Wei Ma、Pengjuan Zhou
DOI:10.1021/acs.joc.3c02995
日期:——
β-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 α,β-alkynic hydrazones functionalized with aromatic groups and secondary amines functionalized with
描述了一种使用 α,β-炔腙和仲胺进行 3-氨基取代吡唑的可用且简单的电介导环化方法。该策略利用 KI 作为未分割电池中的电解质,以恒定电流产生中等至良好产量的所需产品。该方法的特点是在吡唑骨架的3位上进行选择性胺化。结果表明,芳香族基团官能化的α,β-炔腙和富电子基团官能化的仲胺在此转化中具有更好的耐受性。