Process for the preparation of...

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C - Chemistry, Metallurgy

07

C

C07C 63/70 (2006.01) C07C 51/58 (2006.01)

Patent

CA 2144935

2-Halogeno-4,5-difluoro-benzoyl fluorides are obtained in high yields by reacting 2,4-dichloro-5-fluoro-benzoyl halides with potassium fluoride in an aprotic solvent. The 2-halogeno-4,5-difluoro-benzoyl fluorides prepared in this way are particularly suitable as intermediates for the preparation of antibacterial active substances.

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