Process for preparing ring-fluorinated aromatics

Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...

Reexamination Certificate

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C558S343000

Reexamination Certificate

active

11175612

ABSTRACT:
The present invention relates to an improved process for preparing ring-fluorinated aromatics of the general formula (I)by a halogen exchange reaction (halex reaction) of a plurality of halogen substituents in one stage in the presence of a catalyst.

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