ACETYLKETENDIALKYLACETALE UND VERFAHREN ZU IHRER HERSTELLUNG

ACETYLKETENDIALKYLACETALE UND VERFAHREN ZU IHRER HERSTELLUNG

The invention relates to a process for the preparation of acetylketene dialkyl acetals of the formula CH3CO-CH=C(OR2)2 in which R2 can be an alkyl radical with 1 to 12 carbon atoms, and also these compounds themselves, providing that R2 is an alkyl radical with 3 to 12 carbon atoms. In the preparati...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MAU,GUENTER,DR, GUENTHER,KLAUS,DR
Format: Patent
Sprache:ger
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:The invention relates to a process for the preparation of acetylketene dialkyl acetals of the formula CH3CO-CH=C(OR2)2 in which R2 can be an alkyl radical with 1 to 12 carbon atoms, and also these compounds themselves, providing that R2 is an alkyl radical with 3 to 12 carbon atoms. In the preparation process an alkyl acetoacetate of the formula CH3CO-CH2COOR1 is reacted with a saturated primary or secondary alcohol R2OH in the presence of an acid catalyst, in which R2 has the abovementioned meaning and in which R2OH or is higher boiling than R1OH.