Difluoromethyl Nitrile Oxide (CF<sub>2</sub>HCNO): A Neglected Chemical Reagent
作者:Andrii Khutorianskyi、Bohdan Chalyk、Petro Borysko、Anna Kondratiuk、Pavel K. Mykhailiuk
DOI:10.1002/ejoc.201700764
日期:2017.7.25
A novel chemical reagent – difluoromethyl nitrile oxide, CF2HCNO – was generated in situ for the first time. The synthesis commenced with ethyl difluoroacetate and included only two chemical steps. The difluoromethyl nitrile oxide smoothly participated in [3+2]-cycloaddition reactions with alkynes and enamines to give CF2H-isoxazoles; these products are promising cores for agrochemistry. A representative