Fluorine containing ketones
AssigneeHoechst Aktiengesellschaft
InventorThomas Martini
Life of this patent
Estimating the term…
Abstract
By reaction of a perfluoro vinyl ether with a perfluoro carbonic acid fluoride perfluorinated ketones of the formula R.sup.1 --O--CF(CF.sub.3)--CO--R.sup.2 with at least 13 carbon atoms may be obtained. These ketones may be used as inert solvents of high boiling point. The reaction is catalyzed by cesium fluoride and carried out in an aprotic polar solvent.
Claims13
Perfluorinated ketones of the formula ##STR19## wherein R.sup.1 and R.sup.2 may be the same or different and each is a perfluorinated alkyl group that may contain one or more ether oxygen linkages, R.sup.1 and R.sup.2 having a total of 10 to 80 carbon atoms, and at least one of said perfluorinated alkyl groups being a cyclic alkyl group having a 6-membered ring with oxygen atoms in the 1 and 4 position thereof.
A compound having the formula ##STR24## wherein a and b may be the same or different and are 0 or 1.
A perfluorinated ketone of the formula ##STR27## wherein R.sup.1 is selected from ##STR28## R.sup.2 is a linear, branched or cyclic perfluorinated alkyl radical that may contain one or more ether oxygen linkages and R.sup.1 and R.sup.2 have a total of 10 to 80 carbon atoms.
A perfluorinated ketone of the formula ##STR29## wherein R.sup.1 is a linear, branched or cyclic perfluorinated alkyl radical that may contain one or more ether oxygen linkages, R.sup.2 is ##STR30## and R.sup.1 and R.sup.2 have a total of 10 to 80 carbon atoms.
Dependencies are inferred from the claim text.