Process for producing hexafluorobiphenyl -3,3',4,4'-Tetracarboxy

Details Process for producing hexafluorobiphenyl -3,3',4,4'-Tetracarboxy Process for producing hexafluorobiphenyl -3,3',4,4'-Tetracarboxy

1997-06-12

1999-01-05

Killos, Paul J.

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

Organic compounds

Nitriles

560 83, 560102, 558378, 558425, C07C25550

Patent

active

058565574

ABSTRACT:
A 2,2',5,5',6,6'-hexafluorobiphenyl-3,3',4,4'-tetracarboxylic acid precursor as an intermediate material for a highly functional fluororesin may be produced at a high yield by reacting tetrafluorophthalonitrile with an alkali metal iodide.

REFERENCES:
patent: 3440277 (1969-04-01), Holland et al.
Birchall, J Chem Soc C "Polyfluoroarenes" pp. 1343-1348, 1971.
CA:115:583075 abs of JP03101673, Apr. 1991.

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