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:
Mar. 31, 1987
Filed:
Feb. 06, 1986
Applicant:
Inventors:
Jean M Basset, Villeurbanne, FR;
Michel Leconte, Villeurbanne, FR;
Jean Ollivier, Arudy, FR;
Francoise Quignard, Lyons, FR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; B01J / ;
U.S. Cl.
CPC ...
585646 ; 502102 ; 502117 ; 585643 ;
Abstract
Improved process of metathesis of olefins by contact of one or more olefins with a catalyst comprising a tungsten complex with two phenoxy groups, carrying substituents and four other ligands, the complex carrying as coordination groups a halogen atom, an alkyl radical and a carbene. The catalyst preferably is of the formula ##STR1## where X is halogen, R is hydrocarbon or an electronegative group or atom, R.sup.1 is alkyl and R.sup.2 and R.sup.3 are individually hydrogen or alkyl groups.