DIMETHYLAMINE BENZOATE OR P-ANISATE CATALYSED PROCESS FOR THE PREPARATION OF 4-(NITROPHENYL)-DIHYDROPYRIDINES

DIMETHYLAMINE BENZOATE OR P-ANISATE CATALYSED PROCESS FOR THE PREPARATION OF 4-(NITROPHENYL)-DIHYDROPYRIDINES

A method for the preparation of 4-(nitrophenyl)-dihydropyridines, by reactin g a benzaldehyde with an acetoacetate and subsequently reacting the resulting benzylidene derivative with an enamine derivative. Bo th reactions are catalyzed by dimethylamine benzoate or p--anisate.

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Bibliographische Detailangaben
Hauptverfasser: MANGHISI, ELSO, PEREGO, BRUNO
Format: Patent
Sprache:eng ; fre
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:A method for the preparation of 4-(nitrophenyl)-dihydropyridines, by reactin g a benzaldehyde with an acetoacetate and subsequently reacting the resulting benzylidene derivative with an enamine derivative. Bo th reactions are catalyzed by dimethylamine benzoate or p--anisate.