The Oxidation-Reduction Reaction of Hydrazinofluoro Aromatic Compounds. II.1 4,4'-Dihydrazinooctafluorobiphenyl, a Route to Tetrasubstituted Hexafluorobiphenyls
Process for producing hexafluorobiphenyl -3,3',4,4'-Tetracarboxylic acid
申请人:Ube Industries, Ltd.
公开号:US05856557A1
公开(公告)日:1999-01-05
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.