Patent ID: 6525231
Filing Date: 2003-02-25
Classification: C07C

Abstract:
A process for producing a compound of the formula RCFZH wherein R is selected from the group consisting of SF5, CF2SF5 and RfCF2Y, wherein Rf is a perfluoroalkylene group containing from 1 to about 12 carbon atoms and optionally containing one or more ether oxygen atoms, Y is selected from the group consisting of H, F and SF5, and Z is selected from the group consisting of F, CF3 and CF2CF3 comprising: reacting an iodide compound of the formula Râ€²CFZI with hydrogen at an elevated temperature of about 400Â° C. or less in the absence of metal-based hydrogenation catalysts, wherein Râ€² is selected from the group consisting of SF5, CF2SF5 and RfCF2X and wherein X is selected from the group consisting of H, F and SF5 and I, provided that when Y is F, X is F, when Y is SF5, X is SF5 and when Y is H, X is H or I.