Process using CF.sub.2 I.sub.2 and olefins for producing diiodo fluorocompounds, and products thereof

A process for making diiodofluorinated compounds of the formula ICF.sub.2 (A).sub.n T wherein n is an integer of at least 1 and each A is CF.sub.2 CQF wherein each Q is independently selected from the group consisting of F, Cl, R, and OR.sub.F, and R.sub.F is a perfluoroalkyl group containing 1 to 20 carbon atoms or a perfluorinated polyether group containing from 2 to 20 carbon atoms wherein one or more of the fluorines of said perfluoroalkyl or perfluorinated polyether group is optionally replaced by a substituent selected from the group consisting of chlorine, bromine, iodine, hydrogen, sulfonyl fluoride, nitrile, ester, acyl chloride and acyl fluoride, comprising

• reacting an olefin of the formula CF.sub.2 .dbd.CQF with CF.sub.2 I.sub.2 at a temperature in the range of from about 120.degree. C. to 240.degree. C. in the absence of catalyst or initiator.

A diiodofluorinated compound of formula:

• ICF.sub.2 CH.sub.2 CHR.sub.F I
• wherein R.sub.F is a perfluoroalkyl group containing 1 to 20 carbon atoms or a perfluorinated polyether group containing from 2 to 20 carbon atoms wherein one or more of the fluorines of said perfluoroalkyl or perfluorinated polyether group is optionally replaced by a substituent selected from the group consisting of chlorine, bromine, iodine, sulfonyl fluoride, nitrile, ester, acyl chloride and acyl fluoride.

A process for making diiodofluorinated compounds of the formula ICF.sub.2 (A).sub.n I wherein n is 1, A is CF.sub.2 CFOR.sub.F and R.sub.F is a perfluoroalkyl group containing 1 to 20 carbon atoms or a perfluorinated polyether group containing from 2 to 20 carbon atoms wherein one or more of fluorines of said perfluoroalkyl or perfluorinated polyether group is optionally replaced by a substituent selected from the group consisting of chlorine, bromine, iodine, hydrogen, sulfonyl fluoride, nitrile, ester, acyl chloride and acyl fluoride, comprising:

• reacting an olefin of the formula CF.sub.2 .dbd.CFOR.sub.F with CF.sub.2 I.sub.2 at a temperature in the range of from about 120.degree. C. to 240.degree. C.