Process for manufacturing diiodoperfluoroalkanes

   
   

The present invention involves a process for the manufacture of .alpha., .omega.-diiodoperfluoroalkanes of the formula I--(CF.sub.2 CF.sub.2).sub.n --I, wherein n is an integer between 2 and 6. The latter compounds are produced at relatively high conversions and under relatively mild reaction temperatures and pressures, compared to prior art processes, by the elimination of the gaseous byproduct perfluorocyclobutane throughout the process.

La présente invention comporte un processus pour la fabrication de l'alpha., oméga.-diiodoperfluoroalkanes de la formule I -- (CF.sub.2 CF.sub.2).sub.n --I, où n est un nombre entier entre 2 et 6. Les derniers composés sont produits aux conversions relativement élevées et sous les températures relativement douces et des pressions de réaction, comparées aux processus d'art antérieur, par l'élimination du perfluorocyclobutane gazeux de sous-produit dans tout le processus.

 
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