The present invention provides a process whereby fluorinated ketones of
various structures can be produced by short process steps and which is
useful as an industrial production process.
Namely, it is a process for producing a fluorinated ketone of the following
formula (5), which comprises reacting a compound of the following formula
(3) having a fluorine content of at least 30 mass %, with fluorine in a
liquid phase to obtain a compound of the following formula (4), and then,
subjecting the ester linkage of the compound of the formula (4) to a
dissociation reaction:
R.sup.C COOCHR.sup.A R.sup.B (3)
R.sup.CF COOCFR.sup.AF R.sup.BF (4)
R.sup.AF R.sup.BF C.dbd.O (5)
wherein each of R.sup.A and R.sup.AF are each a monovalent organic group
such as an alkyl group, or R.sup.A and R.sup.B may be bonded to each other
to form a bivalent organic group such as an alkylene group, R.sup.AF and
R.sup.BF are a monovalent organic group such as a perfluoroalkyl group
formed by fluorination of R.sup.A and R.sup.B, or they are bonded to each
other to form a bivalent organic group such as a perfluoroalkylene group,
and R.sup.C and R.sup.CF are each a monovalent organic group such as a
perfluoroalkyl group which may contain an etheric oxygen atom.
