作者:Koidan, Georgyi、Zahorulko, Serhii、Hurieva, Anastasiia、Shishkina, Svitlana、Rusanov, Eduard B.、Kostyuk, Aleksandr
DOI:10.1002/ejoc.202400479
日期:——
N-Alkyl(aryl)pyrazoles react with silylformamidine that exists in an equilibrium with its carbene form via migration of the trimethylsilyl group from the carbon to nitrogen atom inserting at C−H group in 5th position. N-Alkyl(aryl)pyrazoles featuring substituents such as Br, CN and NO2 readily afford the corresponding aminals.
N-烷基(芳基)吡唑与甲硅烷基甲脒反应,甲脒通过三甲基甲硅烷基从碳原子迁移到插入第 5位CH 基团的氮原子,与其卡宾形式保持平衡。具有诸如Br、CN和NO 2等取代基的N-烷基(芳基)吡唑很容易提供相应的缩醛胺。