eco-friendly neat synthesis of isothiazoles has been developed for the first time. It is noteworthy that an instantaneous valuable synthetic route of β-enaminones has also been documented during the mechanistic investigation of isothiazole formation. Detail mechanistic explanation of isothaizole formation reaction is clearly explained by the control experiments. NBS promoted aromatisation of isothiazole derivatives
Dearomative Insertion of Fluoroalkyl Carbenes into Azoles Leading to Fluoroalkyl Heterocycles with a Quaternary Center
作者:Linxuan Li、Yongquan Ning、Hongzhu Chen、Yongyue Ning、Paramasivam Sivaguru、Peiqiu Liao、Qingwen Zhu、Yong Ji、Graham de Ruiter、Xihe Bi
DOI:10.1002/anie.202313807
日期:2024.1.2
strategy was developed for the direct conversion of azoles into various heterocyclic frameworks containing fluoroalkyl-substituted quaternary centers through dearomative one-carbon insertion using fluoroalkyl N-triftosylhydrazones. The method is scalable, tolerates diverse functional groups, and is amenable to the synthesis of medicinally relevant molecules.