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:
Oct. 28, 2003
Filed:
Apr. 12, 2002
Michel Alas, Melle, FR;
Rhodia Chimie, Bologne Billancourt Cedex, FR;
Abstract
The invention concerns a method for preparing ketones of formula (I) wherein A and B are as defined in claim 1, consisting of reacting at a temperature ranging between 250 and 500° C. a compound of formula (II): A—X with a compound of formula (III): B—Y, wherein A, B, X and Y are as defined in claim 1, in a coolant solvent having a boiling point higher than 250 ° C., in the presence of a catalyst comprising at least a chemical compound of an element selected among alkali, alkaline-earth metals, lanthanides, Si, Al, Zn, Cu, Co, Fe, Mo, Mn, Cr, V, T, Zr, U, Rh, Tl, Ag, Cd, Pb, Y, Sc and Th, wherein the element is in divalent state or has a higher valency
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile