PROCESS FOR THE PREPARATION OF DIALKYL 3-OXOGLUTARATES

PROCESS FOR THE PREPARATION OF DIALKYL 3-OXOGLUTARATES

Preparation of diethyl/dimethyl-3-oxoglutarate (I) involves reacting citric acid, or its monohydrate, with chlorosulfonic acid (C1) in a lower chlorinated aliphatic hydrocarbon (H1), followed by reaction with methanol/ethanol. The volume ratio of (H1):(C1) is 0.1:1 - 1:1 and the rate of addition of...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: MORASZ, TAMÁS, SZABO, ATTILA, OLAH, SÁNDOR, TÖREKI, JÓZSEF, TOTH, GÁBOR, JAKFALVI, ELEMÉR, GREGORNE BOROS, LIVIA
Format: Patent
Sprache:eng ; pol
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Preparation of diethyl/dimethyl-3-oxoglutarate (I) involves reacting citric acid, or its monohydrate, with chlorosulfonic acid (C1) in a lower chlorinated aliphatic hydrocarbon (H1), followed by reaction with methanol/ethanol. The volume ratio of (H1):(C1) is 0.1:1 - 1:1 and the rate of addition of citric acid is 1 - 2 kg/minute.