METHOD OF SYNTHESIS OF ETHYLENE GLYCOL POLYFLUOROALKYL ESTERS

摘要

Use: as solvents fluids. .... The inventive improved the method for preparing poliftoralkilovyh ethylene glycol ethers of formula (RFHCCFaOCHfc or CI Yield 60-88% Reagent 1: Reagent 2 ethylene: tetrafluoro - or trifluorochloroethylene reaction conditions: temperature 40-60 & amp; deg; C, the solvent - diglyme , dimethoxyethane or dioxane, the presence of potassium hydroxide or sodium hydroxide and a quaternary ammonium salt of the general formula (R) of R2 X, where R1 - alkyl C2-C4, Ra-CHaPh, or Ri-Ra, process the molar ratio of ethylene: an alkali metal hydroxide : ammonniy- on salt: solvent ratio of 1: 0.15 to 0.4: 0,01-0,05:. Table 1 1.0-6.0.