A process for preparing acylfluorides by reaction of carbonyl fluoride COF.sub.2 with compounds having general formula: T=CR.sub.1R.sub.2 (I) wherein: T is O or CF.sub.2 R.sub.1 and R.sub.2, equal or different, are F or a R(O).sub.t radical, wherein R=linear or branched C.sub.1 C.sub.7 (per)fluoroalkyl, optionally containing one or more oxygen atoms, t is an integer equal to zero or 1; wherein a catalyst supported on porous compound is used, the catalyst being selected from: CsF, RbF, KF, AgF, each optionally in admixture with one or more of the others.
This is a divisional of application Ser. No. 10/461,349 filed Jun. 16, 2003, now U.S. Pat. No. 6,852,884. The disclosure of the prior application is hereby incorporated by reference herein in its entirety.
