US 2026/0296997 A1 · METHODS FOR PRODUCING 1,1-DIFLUOROPROPENE (HFO-1252ZC) FROM VINYLIDENE FLUORIDE

Abstract

A method for producing 1,1-difluoropropene (HFO-1252zc) from vinylidene fluoride (HFO-1132a) in the form of a two-step reaction is described. Step one of the reaction includes reacting HFO-1132a with an alkyl halide to produce 1,1-difluoropropane (HCFC-262fc). Step two of the reaction includes dehydrochlorination of HCFC-262fc to produce HFO-1252zc. Step one includes a catalyst, and step 2 may include a catalyst.

Claims20

Dependent claims

A method for producing 1,1-difluoropropene (HFO-1252zc), comprising:

reacting vinylidene fluoride (HFO-1132a) with an alkyl halide in the presence of a catalyst to produce a first product composition comprising 1-chloro-1,1-difluoropropane (HCFC-262fc);
and
reacting HCFC-262fc from the first product composition to produce a second product composition comprising 1,1-difluoropropene (HFO-1252zc).

Dependencies are inferred from the claim text.

Methods for producing 1,1-difluoropropene (hfo-1252zc) from vinylidene fluoride

Life of this patent

Methods for producing 1,1-difluoropropene (hfo-1252zc) from vinylidene fluoride

Life of this patent

Abstract

Claims20