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. 07, 2005
Filed:
Aug. 21, 2001
Steffen Kudis, Mannheim, DE;
Ulf Misslitz, Neustadt, DE;
Ernst Baumann, Dudenhofen, DE;
Wolfgang Von Deyn, Neustadt, DE;
Klaus Langemann, Schauenburg, DE;
Steffen Kudis, Mannheim, DE;
Ulf Misslitz, Neustadt, DE;
Ernst Baumann, Dudenhofen, DE;
Wolfgang von Deyn, Neustadt, DE;
Klaus Langemann, Schauenburg, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
The invention relates to a method for producing β-ketoenol esters of the general formula (Ia) or (Ib), wherein Ar, Rand Rare defined as in claim. The inventive method is characterized by reacting an arylhalogenide of the general formula (II) with a 1,3-diketone of the general formula (III) or the tautomers thereof in a carbon monoxide atmosphere in the presence of an alkali and a catalyst that contains at least one transition metal of group VIII of the periodic system