VERFAHREN ZUR HERSTELLUNG VON BENZOESAEURE-DERIVATEN

VERFAHREN ZUR HERSTELLUNG VON BENZOESAEURE-DERIVATEN

A process for the preparation of a compound of the formula (I) in which X1 and X2 each independently is chlorine or fluorine, and Y is chlorine, bromine, fluorine or iodine, comprising subjecting a compound of the formula (II) to a Sandmeyer or Balz-Schiemann reaction thereby to produce a carboxylic...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KYSELA,ERNST,DR, GROHE,KLAUS,DR, PETERSEN,UWE,DR, SCHRIEWER,MICHAEL,DR
Format: Patent
Sprache:ger
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:A process for the preparation of a compound of the formula (I) in which X1 and X2 each independently is chlorine or fluorine, and Y is chlorine, bromine, fluorine or iodine, comprising subjecting a compound of the formula (II) to a Sandmeyer or Balz-Schiemann reaction thereby to produce a carboxylic acid of the formula (Ia) and converting the carboxylic acid (Ia) into an acyl chloride of the formula (Ib) The compound (II) is new. The products are known intermediates for anti-bacterials.