Process for preparing acylfluorides

Details Process for preparing acylfluorides Process for preparing acylfluorides

2005-02-08

2005-02-08

Richter, Johann (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic halides

C562S843000, C562S849000, C562S853000

Reexamination Certificate

active

06852884

ABSTRACT:
A process for preparing acylfluorides by reaction of carbonyl fluoride COF2with compounds having general formula:in-line-formulae description="In-line Formulae" end="lead"?T=CR1R2  (I)in-line-formulae description="In-line Formulae" end="tail"?wherein:T is O or CF2R1and R2, equal or different, are F or a R(O)tradical, wherein R=linear or branched C1-C7(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.

REFERENCES:
patent: 3113967 (1963-12-01), Fawcett
patent: 3114778 (1963-12-01), Fritz et al.
patent: 3758538 (1973-09-01), Litt et al.
patent: 4769184 (1988-09-01), Okabe et al.
patent: 6013795 (2000-01-01), Manzara et al.

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