A method for the manufacture of halophthalic acid by liquid phase oxidation of halo-ortho-xylene is disclosed. The halophthalic acid may be dehydrated to form halophthalic anhydride which is useful in the synthesis of polyetherimide.

Eine Methode für die Herstellung der halophthalic Säure durch flüssige Phase Oxidation des Halo-ortho-Xylens wird freigegeben. Die halophthalic Säure kann entwässert werden, um halophthalic Anhydrid zu bilden, das in der Synthese von polyetherimide nützlich ist.

 
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