30320-29-7Relevant articles and documents
Continuous preparation method of hexafluoropropylene trimer
-
Paragraph 0048-0051; 0055, (2021/10/27)
The continuous preparation method comprises the following steps: in a microchannel reactor, a liquid phase catalyst preheated by hexafluoropropylene and a preheating module is reacted at 70 - 140 °C to obtain a hexafluoropropylene trimer. The liquid phase catalyst is prepared from component A, component B, component C and component D. The component A is at least one selected from the group consisting of potassium fluoride, cesium fluoride, and potassium hydrofluoride. The component B is selected from at least one 18 - crown ether -6, β - cyclodextrin and polyethylene glycol. The component C is selected from at least one of a nitrile compound, a glycol ether compound and an amide compound. The component D is selected from at least one of-4 -methyl -2 - pentene,2 - methyl -2 - pentene,2 - ethyl -3 and 3 -dimethylethylene oxide. The continuous preparation method has the advantages of accurate temperature control, good selectivity, continuous feeding, reusability of the catalyst and the like.
SYNTHESIS AND REACTIONS OF THE OXIDES OF HEXAFLUOROPROPYLENE TRIMERS
Zapevalov, A. Ya.,Filyakova, T. I.,Peschanskii, N. V.,Kodess, M. I.,Kolenko, I. P.
, p. 1933 - 1938 (2007/10/02)
By the oxidation of the hexafluoropropylene trimers with an aqueous solution of sodium hypochlorite in the presence of acetonitrile the following α-oxides were obtained: 2,3-Epoxyperfluoro-3-isopropyl-4-methylpentane and 2,3-epoxyperofluoro-3-ethyl-2,4-dimethylpentane.According to the 19F NMR data, the epoxidation takes place stereoselectively with the formation of only one conformer of the α-oxide in each case.The determining effect of the steric factors on the reactivity of the oxides of hexafluoropropylene trimers in reaction with nucleophiles was demonstrated.
