IMPROVED PROCESS FOR PRODUCING ALKYL-ESTERS OF ISODEHYDRO-ACETIC ACID

IMPROVED PROCESS FOR PRODUCING ALKYL-ESTERS OF ISODEHYDRO-ACETIC ACID

Improved prepn. of iso-dehydroacetic acid-alkyl estero of formula (I), where R is a 1-4C alkyl gp., comprises condensation of an acetoacetic-ester of formula (II), at 0-50 deg.C, in the presence of hydrogen bromide and an 1-4C alkanol.

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Bibliographische Detailangaben
Hauptverfasser: PATAKI,SANDOR,HU, BARKOCZY,JOZSEF,HU, NEMETH,ZOLTAN,HU, KOERTVELYESSY,GYULA,HU
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:Improved prepn. of iso-dehydroacetic acid-alkyl estero of formula (I), where R is a 1-4C alkyl gp., comprises condensation of an acetoacetic-ester of formula (II), at 0-50 deg.C, in the presence of hydrogen bromide and an 1-4C alkanol.