METHOD FOR PRODUCING α,β-UNSATURATED CARBOXYLIC ACID

PROBLEM TO BE SOLVED: To provide a method for producing an α,β-unsaturated carboxylic acid in high productivity by oxidizing an olefin or an α,β-unsaturated aldehyde with molecular oxygen in a liquid phase.SOLUTION: The method for producing the α,β-unsaturated carboxylic acid includes oxidizing an o...

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Hauptverfasser:	AKIHARA HIDEJI, TAKENAKA JUNKI, TAKEDA AKIO, NINOMIYA KO
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for producing an α,β-unsaturated carboxylic acid in high productivity by oxidizing an olefin or an α,β-unsaturated aldehyde with molecular oxygen in a liquid phase.SOLUTION: The method for producing the α,β-unsaturated carboxylic acid includes oxidizing an olefin or an α,β-unsaturated aldehyde with molecular oxygen in a liquid phase in the presence of a supported catalyst containing a palladium, wherein a mixed solvent containing water, alcohol, and an organic carboxylic acid is used as a solvent for the liquid phase, and when X:Y:Z is a mass ratio of water, alcohol, and the organic carboxylic acid in the mixed solvent, the mixed solvent satisfies the following formula (1) and any one of the following conditions (2) to (4): (1) X+Y+Z=1.00; (2) when X