- Diaryl hexafluoroacetore the synthetic method of the compound of
-
The invention provides of a synthesis method of a diaryl hexafluoropropane compound. The method is characterized by comprising the following steps: firstly mixing aromatic hydrocarbon and anhydrous hydrogen fluoride in a reactor, adding a catalyst, and then adding hexafluoropropylene oxide, stirring and heating; removing hydrogen fluoride after the reaction is finished, and refining the rest product to obtain a diaryl hexafluoropropane compound product, wherein the catalyst is one or more of halogenated antimony and halogenated titanium system catalyst. Through the adoption of the method disclosed by the invention, isomerization and condensation reaction with the aromatic hydrocarbon of hexafluoropropylene oxide are realized in a process stage, the process step of the synthesis is reduced, the production cost and the byproduct production are reduced, and the yield of the product is greatly improved.
- -
-
Paragraph 0029-0030
(2017/02/09)
-
- Process for preparing 2,2-diphenylhexafluoropropanes
-
2,2-diphenylhexafluoropropanes are prepared by condensation reaction of benzene or benzenes substituted with a halogen atom or atoms, a lower alkyl group or groups or a hydroxyl group or groups with hexafluoroacetone in the presence of trifluoromethane sulfonic acid. Among the 2,2-diphenylhexafluoropropanes, 2,2-diphenylhexafluoropropane and 2,2-bis(p-chlorophenyl)hexafluoropropane are novel compounds.
- -
-
-