The reaction between difluorotrichloromethylphosphine and secondary amines: a new synthesis of aminodifluorophosphines

Abstract

Difluorotrichloromethylphosphine reacts with diethylamine, piperidine, and pyrrolidine, to produce chloroform and diethylamino-N-difluorophosphine (C2H5)2NPF2, piperidine-N-difluorophosphine C5H10NPF2, and pyrrolidine-N-difluorophosphine C4H8NPF2, respectively. The last has also been prepared by fluorination of the corresponding dichloro-compound with antimony trifluoride. The phosphorus, fluorine, and proton n.m.r. spectra of these compounds are presented.