Electrochemically Enabled Cascade Cyclization Reaction of Aromatic Aldehydes and Pyrazol-5-amines: Synthesis of Bis-pyrazolo[3,4-<i>b</i>:4′,3′-<i>e</i>]pyridines
作者:Peng Qian、Shan Jiang、Hua Fan、Siqi Jiang、Longlong Xu、Jiaojiao Liu
DOI:10.1021/acs.joc.2c00988
日期:2022.7.15
A facile method for the synthesis of bis-pyrazolo[3,4-b:4′,3′-e]pyridines from easily available aromatic aldehydes and pyrazol-5-amines was developed via electrochemistry. The reaction proceeded smoothly under metal and external chemical oxidant-free conditions, giving a variety of bis-pyrazolo[3,4-b:4′,3′-e]pyridines in moderate yields.
通过电化学开发了一种从易得的芳香醛和 pyrazol-5- amines合成双吡唑并[3,4- b :4',3' -e ] 吡啶的简便方法。该反应在无金属和外部化学氧化剂的条件下顺利进行,以中等收率得到多种双吡唑并[3,4- b :4',3' -e ]吡啶。