The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 14, 1998
Filed:
Sep. 19, 1997
Applicant:
Inventors:
John Zavilla, Ved.ae butted.k, DK;
Sven Ivar Hommeltoft, Hiller.o slashed.d, DK;
Assignee:
Haldor Topsoe A/S, Lyngny, DK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568 35 ; 568 28 ;
Abstract
Preparation of fluorinated alkyl sulphonyl halides having the general formula: ##STR1## where R.sup.I.sub.f is fluorinated alkyl group and R.sup.II.sub.f is a fluorinated alkyl group or fluorine, X is a halogen atom, and Y is a proton, a halogen atom, or a fluorinated alkyl groups, by reaction of a corresponding fluorinated unsaturated hydrocarbon with sulphuryl halide, wherein the reaction is carried out in the presence of at least catalytic amounts of a fluoride in a solvent comprising compounds having one or more SO and/or SO.sub.2 groups incorporated in the compound structure.