19190-57-9

Upstream product

• 428-59-1 Hexafluoropropene oxide 
• 110-71-4 1,2-dimethoxyethane 
• 702-35-2 hexafluoro-dihydro-furan-2-one 
• 679-13-0 perfluorosuccinic difluoride 

Downstream Products

• 19190-61-5 methyl 4-trifluoroethenoxy-2,2,3,3,4,4-hexafluorobutanoate 

Relevant academic research and scientific papers

PROCESS FOR PRODUCING FLUORINATED COMPOUND

To provide a process for producing a desired perfluorinated product at a high yield in a fluorination reaction of a partially fluorinated ester. A perfluorinated compound (4) is obtained by fluorinating in a liquid phase a compound (3) (wherein the fluorine content is at least 30 mass %) obtained by reacting a compound (1) and a compound (2), wherein the compound (1) is HOCH2—RA—CH2OH, the compound (2) is X1C(═O)—C(RB)(RC)(RD), RA is a bivalent saturated hydrocarbon group or the like which has no hetero atom such as an etheric oxygen atom, X1 is a halogen atom, and —C(RB)(RC)(RD) is a branched group.

Method for producing fluorinated compound

Provided is a method for producing a desired perfluorinated product with high yield by a fluorination reaction of a partially fluorinated ester. A compound (3), which is produced by reacting a compound (1) with a compound (2) (and which has a fluorine content of 30 mass% or more), is fluorinated in a liquid phase to produce a perfluorinated compound (4), wherein the compound (1) is represented by the formula HOCH2-RA-CH2OH and the compound (2) is represented by the formula X1C(=O)-C(RB)(RC)(RD). RA represents a bivalent saturated hydrocarbon group or the like and does not have a hetero atom such as an ethereal oxygen atom. X1 represents a halogen atom, and -C(RB)(RC)(RD) represents a branched group.

Synthesis of perfluorinated carboxylic acid membrane monomers by utilizing liquid-phase direct fluorination

A new synthetic procedure for the preparation of perfluorinated carboxylic acid membrane monomers from non-fluorinated compounds has been developed. A key step in the synthetic route is liquid-phase direct fluorination reaction with elemental fluorine. Direct fluorination of a partially fluorinated diester, which was prepared from a hydrocarbon diol and a perfluorinated acyl fluoride, followed by thermal elimination, gave a perfluorinated diacyl fluoride, which is a precursor of a perfluorinated carboxylic acid membrane monomer.

Use of Perfluoroalkylfluorosulfonates for Synthesizing Organofluorine Compounds

The possibility of using fluorosulfation for synthesizing perfluorovinyl and perfluorodivinyl ethers, and also perfluorocarboxylic and perfluorodicarboxylic acids, has been studied.

Process for producing polyfluorodiacyl fluoride

Polyfluorodiacyl fluorides having the formula wherein n represents an integer of 2 to 4; X represents fluorine or chlorine atom or trifluoromethyl group; p=0 to 5; q=0 to 5; p+q>1 are produced by reacting a perfluorolactone with a fluorocarbon epoxide, optionally in the presence of an aprotic polar solvent and a nucleophilic reagent.