Process for the preparation of unsaturated ketones

Process for the preparation of unsaturated ketones

A process for the preparation of beta,gamma,delta-unsaturated ketones and/or alpha,beta,gamma,delta-unsaturated ketones by the reaction of an unsaturated alcohol with an enol ether or mixture of enol ethers, with formation of ketals as a by-product, at temperatures of from 50° C. to 200° C., in the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DRAPAL BERND, SHI NONGYUAN, KRILL STEFFEN, JULINO MARKUS, HUTHMACHER KLAUS
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:A process for the preparation of beta,gamma,delta-unsaturated ketones and/or alpha,beta,gamma,delta-unsaturated ketones by the reaction of an unsaturated alcohol with an enol ether or mixture of enol ethers, with formation of ketals as a by-product, at temperatures of from 50° C. to 200° C., in the presence of an acid catalyst, whereby one or all of the reagents is/are heated to the reaction temperature of from 50° C. to 200° C. before the acid catalyst is added.