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US 5,672,791 AGranted
Process for the preparation of nuclear-halogenated benzotrichlorides from the corresponding benzotrifluorides
AssigneeBayer Aktiengesellschaft
InventorsFritz Doring, Reinhold Gehring, Josef Heinrich
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Abstract
Nuclear-halogenated benzotrichlorides are prepared in a particularly advantageous manner from the corresponding nuclear-halogenated benzotrifluorides by reacting nuclear-halogenated benzotrifluorides with silicon tetrachloride in the presence of catalytic amounts of aluminium trichloride.
Claims11
A process for the preparation of a nuclear-halogenated benzotrichloride from the corresponding nuclear-halogenated benzotrifluoride, in which the nuclear-halogenated benzotrifluoride is reacted with silicon tetrachloride in the presence of a catalytic amount of aluminium trichloride.
Dependencies are inferred from the claim text.