2070-65-7

Upstream product

• 116-15-4 perfluoropropylene 
• 75-89-8 2,2,2-trifluoroethanol 

Relevant academic research and scientific papers

Fluoride-catalyzed hydroalkoxylation of hexafluoropropene with 2,2,2-trifluoroethanol

Trifluoroethoxylation of hexafluoropropene with 2,2,2-trifluoroethanol (TFE) were conducted using an alkali metal fluoride catalyst to produce CF3CHFCF2OCH2CF3. KF exhibited the highest yield and selectivity of CF3CHFCF2OCH2CF3, whereas LiF and NaF were inactive for the trifluoroethoxylation reaction. The same reaction also proceeded well in the presence of RbF or CsF, but yielded large amounts of olefinic and high molecular weight side products, implying that the size of alkali metal cation or the degree of MF dissociation plays an important role in determining the activity and the product composition. FT-IR and NMR experiments revealed that CsF interacts with TFE more strongly than KF through a hydrogen bonding. The experimental and spectroscopic results suggest that the degree of MF dissociation should be in the medium range for the selective production of CF3CHFCF2OCH2CF3 in high yield and selectivity.

METHOD FOR PROCESSING FLUORINATED ALKYL ETHER

Disclosed is a method for commercially producing a high-purity fluorinated alkyl ether wherein the content of impurities having an unsaturated bond is extremely low. Specifically disclosed is a method for processing a fluorinated alkyl ether characterized in that a reaction crude liquid containing a fluorinated alkyl ether, which is obtained by reacting a fluorinated alkyl alcohol and a fluorinated olefin in the presence of a basic catalyst, and an unsaturated impurity having an unsaturated bond, which is by-produced during the reaction, is brought into contact with a chlorine gas so that the unsaturated impurity is converted into a chlorine addition product, thereby decreasing the unsaturated impurity content in the reaction liquid.