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:
Jun. 06, 1989
Filed:
Mar. 28, 1986
Applicant:
Inventors:
Michel Desbois, Rillieux La Pape, FR;
Bernard Langlois, Lyons, FR;
Assignee:
Rhone-Poulenc Specialites Chimiques, Courbevoie, FR;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
568 43 ; 20415777 ; 20415778 ; 20415779 ; 2041578 ; 20415782 ; 20415788 ; 20415792 ; 2605 / ; 2605 / ; 260694 ; 558423 ; 558425 ; 560 18 ; 560 59 ; 568 44 ; 568 52 ; 568 54 ; 568 56 ; 568333 ; 568588 ; 568633 ;
Abstract
A process for the preparation of (pentafluoroethoxy)- and (pentafluoroethylthio)benzene derivatives either from phenol, thiophenol or from halobenzene. A halobenzene is reacted with trifluoroethanol or a phenol or a thiophenol is reacted with a compound of the formula CF.sub.3 --CH.sub.2 --O--R'. The product is chlorinated and the chlorinated product is fluorinated in liquid hydrofluoric acid in the presence of a Lewis acid. The compounds obtained by the process of the present invention are used as synthesis intermediates in the phytosanitary, pharmaceutical and veterinary industries, and are used in lubricants.