Preparation of fluoropyridines

Details Preparation of fluoropyridines Preparation of fluoropyridines

C - Chemistry, Metallurgy

07

D

260/295.2

C07D 213/61 (2006.01) C07D 213/85 (2006.01)

Patent

CA 1208225

ABSTRACT A process for the simultaneous preparation of 2,3-difluoro- and 2,3-dichloropyridines from 3- -chloro-2-fluoropyridines which comprises passing a 3-chloro-2-fluoropyridine over a carbon-based catalyst, optionally in the presence of HF, at elevated tempera- tures, thereby forming the corresponding 2,3-dichloro- and 2,3-difluoropyridines.

493041

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