An effective difluorocarbene reagent for O-,S-,N-,C-difluoromethylation under mild conditions. When only 1.2 equivalent of the reagent is used,the difluoromethylated products can be obtained in moderate to excellent yields at low temperatures.
Difluoromethylation of O-,S-,N-,C-Nucleophiles Using Difluoromethyltri(n-butyl)ammonium Chloride as a New Difluorocarbene Source.
 F. WangW.Z.Huang,J.B.Hu.Chin.J. Chem.2011,29,2717-1721.