Process and intermediates for the preparation of 2,6-difluoroani

Details Process and intermediates for the preparation of 2,6-difluoroani Process and intermediates for the preparation of 2,6-difluoroani

1990-06-14

1991-08-20

Scalzo, Catherine S. Kilby

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

568938, 570127, C07C21146, C07C20922

Patent

active

050416740

ABSTRACT:
1-Chloro-3,5-difluorobenzene is chlorinated to give 4,6-difluoro-1,2,3-trichlorobenzene which in turn is nitrated and reduced to the corresponding novel aniline, 2,6-difluoro-3,4,5-trichloroaniline. Further reduction of this aniline provides 2,6-difluoroaniline with high selectivity.

REFERENCES:
patent: 2519317 (1950-08-01), Kolka et al.
patent: 3546293 (1970-12-01), Kalopissis et al.
patent: 4229365 (1980-10-01), Oeser et al.
patent: 4868347 (1989-09-01), Blank et al.

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