Patent ID: 7829741

Claim:
A process for producing an α,α-difluoroamine represented by general formula (1) in accordance with a halogen-fluorine exchange reaction using an α,α-dihaloamine represented by general formula (2) as a substrate, wherein hydrogen fluoride and a Lewis base are used for the exchange reaction each in an amount by mole in a range of 90 to 110% based on an amount by mole of a halogen atom represented by X in the α,α-dihaloamine, and a salt of a hydrogen halide and the Lewis base formed by the exchange reaction is removed to outside of a reaction system: wherein R 0 , R 1 and R 2 each represent hydrogen atom or an alkyl group, an aryl group, an alkylamino group or an arylamino group, which may have substituents, atoms and groups represented by R 0 , R 1 and R 2 may be same with or different from each other, and a ring may be formed by bonding of two or more groups represented by R 0 , R 1 and R 2 ; wherein R 0 , R 1 and R 2 each represent hydrogen atom or an alkyl group, an aryl group, an alkylamino group or an arylamino group, which may have substituents, atoms and groups represented by R 0 , R 1 and R 2 may be same with or different from each other, a ring may be formed by bonding of two or more groups represented by R 0 , R 1 and R 2 , and X represents chlorine atom, bromine atom or iodine atom.