SYNTHESIS METHOD OF α,β-UNSATURATED CARBOXYLIC ACID

To provide a synthesis method of α,β-unsaturated carboxylic acid capable of improving a generation amount of the α,β-unsaturated carboxylic acid.SOLUTION: A synthetic method of α,β-unsaturated carboxylic acid, which includes to form a metal lactone compound having a specific structure as an intermed...

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Hauptverfasser:	MIYAMA TOSHIHITO, DASANAYAKE ALUTHGE RASIKA, SHINMYO KENICHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	To provide a synthesis method of α,β-unsaturated carboxylic acid capable of improving a generation amount of the α,β-unsaturated carboxylic acid.SOLUTION: A synthetic method of α,β-unsaturated carboxylic acid, which includes to form a metal lactone compound having a specific structure as an intermediate body by reacting alkene and carbon dioxide with a transition metal complex under the presence of Lewis acid and a base to form a metal lactone compound having a specific structure as an intermediate body and to act the Lewis acid and base on the metal lactone compound, the relationship between the acid dissociation constant of the base (pKa1) of a conjugate acid of the base and the acid dissociation constant (pKa2) of the α,β-unsaturated carboxylic acid is pKa1