Patent ID: 6963013
Filing Date: 2005-11-08
Classification: C07C,C08F

Abstract:
1. A process for making fluorovinyl ether of formula wherein: 1) R is a C 2) up to two fluorine atoms of the perfluoroalkyl group or the perfluorooxyalkyl group can be independently replaced with an atom selected from the group consisting of H, Cl, Br, and I; and 3) X is F or H; comprising the steps of with the proviso that when one of R 5 , R 6 , R 7 or R 8 is a C 2 -C 4 linear or branched fluoroalky group or a C 2 -C 4 linear or branched fluoroalkoxy group comprising from one to three oxygen atoms; then one or two of the remaining three of R 5 , R 6 , R 7 , and R 8 are F and the remaining one or two of R 5 , R 6 , R 7 , R 8 are selected from H, Cl, Br, and I, with the proviso that, where only one of said remaining three of R 5 , R 6 , R 7 , and R 8 is F, then the remaining two of R 5 , R 6 , R 7 , and R 8 are the same and linked to the same carbon atom; and further with the proviso that when R 5 and R 7 together with the carbon to which they are attached, or R 6 and R 8 together with the carbon atom to which they are attached, are linked to form a cyclic then one of the remaining two of R 5 , R 6 , R 7 , and R 8 is F and the other is selected from H, Cl, Br, and I.