Method for producing beta ketoenol esters

The invention relates to a method for producing beta-ketoenol esters of the general formula (Ia) or (Ib), wherein Ar, Ra and Rb are defined as in claim 1 . The inventive method is characterized by reacting an arylhalogenide of the general formula (II) with a 1,3-diketone of the general formula (III)...

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Bibliographic Details
Main Author S. KUDIS,U. MISSLITZ,E. BAUMANN
Format Patent
LanguageEnglish
Published 28.06.2006
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary:The invention relates to a method for producing beta-ketoenol esters of the general formula (Ia) or (Ib), wherein Ar, Ra and Rb are defined as in claim 1 . 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
Bibliography:Application Number: CN20018016038