PROCEDIMENTO DI PREPARAZIONE DI COMPOSTI DEL TIPO ARILAMMINOALCHILIDENEMALONATI

PROCEDIMENTO DI PREPARAZIONE DI COMPOSTI DEL TIPO ARILAMMINOALCHILIDENEMALONATI

The invention concerns a method for preparing arylaminoalkylidenemalonate derivatives corresponding to general formula (I) consisting in reacting, in one single step, an aromatic amine (II) with an alkyl malonate (III) and an ester (IV) or an orthoester (IV') in the presence of a solid catalyst...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GALLO ROGER, GOZARD JEAN-PIERRE, TRIPPITELLI SOPHIE
Format: Patent
Sprache:ita
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:The invention concerns a method for preparing arylaminoalkylidenemalonate derivatives corresponding to general formula (I) consisting in reacting, in one single step, an aromatic amine (II) with an alkyl malonate (III) and an ester (IV) or an orthoester (IV') in the presence of a solid catalyst with lamellar structure of clay type such an aluminosilate activated by acid treatment and a condensation reagent of carboxylic acid or carboxylic anhydride type. The invention also concerns a method for obtaining 4-hydroxyquinoline-3-carboxylic acid derivatives or corresponding esters from arylaminoalkylidenemalonates (I) prepared by said method.