PROCESS FOR PREPARING DERIVATIVES OF PHENOXYPROPIONIC ACID

PROCESS FOR PREPARING DERIVATIVES OF PHENOXYPROPIONIC ACID

Preparation of D(+)-2-[4-(6-chloro-2-quinoxalyloxy)phenoxy]propionic acid(I) comprising reacting an alkali metal salt of 4-(6-chloro-2-quinoxalyloxy)phenol (II) with an alkali metal salt of L-2-chloropropionic acid (III) in an aromatic hydrocarbon solvent in the presence of an aprotic polar solvent...

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Bibliographische Detailangaben
Hauptverfasser: ISHII KANICHI, HATANAKA MASATAKA, FUKUDA KENZO, MAKABE TAKAHIRO
Format: Patent
Sprache:cze ; eng
Schlagworte:
APPARATUS THEREFOR
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Zusammenfassung:Preparation of D(+)-2-[4-(6-chloro-2-quinoxalyloxy)phenoxy]propionic acid(I) comprising reacting an alkali metal salt of 4-(6-chloro-2-quinoxalyloxy)phenol (II) with an alkali metal salt of L-2-chloropropionic acid (III) in an aromatic hydrocarbon solvent in the presence of an aprotic polar solvent to obtain an alkali metal salt of (I), and treating it with an acid.