Process for the preparation of allyl quinone derivatives, and intermediates

A process for the industrial preparation of the quinone derivative represented by the following general formula: which is a preparation intermediate for chroman derivatives useful as a blood suger lowering agent, and novel intermediates, are provided. A preparation process for preparing the above qu...

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Bibliographische Detailangaben
Hauptverfasser:	SEKI, CHIAKI, KONISHI, MASAYUKI, HAMAMURA, KIMIO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A process for the industrial preparation of the quinone derivative represented by the following general formula: which is a preparation intermediate for chroman derivatives useful as a blood suger lowering agent, and novel intermediates, are provided. A preparation process for preparing the above quinone derivative encompasses the following: (1) Oxidation of the corresponding hydroquinone derivative, and (2) Hydrolysis of the corresponding acyl hydroquinone derivative with a Claisen alkali, followed by the oxidation of resulting hydrolyzate.