Process for preparing 4,4'-difluorobiphenyl

Details Process for preparing 4,4'-difluorobiphenyl Process for preparing 4,4'-difluorobiphenyl

1989-11-03

1990-09-11

Evans, J. E.

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

Organic compounds

Halogen containing

C07C 1726, C07C 2518

Patent

active

049565079

ABSTRACT:
An improved process for preparing high yields of 4,4'-difluorobiphenyl comprised of reacting a p-halofluorobenzene Grignard reagent with a p-halofluorobenzene coupling reagent in the presence of a palladium chloride triphenylphosphine catalyst.

REFERENCES:
patent: 3046313 (1962-07-01), Pummer et al.
patent: 4775764 (1988-10-01), Dummitt

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