Fluoro-containing compounds based on 4,4'-bis...

Details Fluoro-containing compounds based on 4,4'-bis... Fluoro-containing compounds based on 4,4'-bis...

C - Chemistry, Metallurgy

07

C

402/2, 260/616.5

C07C 43/295 (2006.01) C07C 205/38 (2006.01) C07C 217/90 (2006.01) C08G 59/40 (2006.01) C08G 73/10 (2006.01) C08G 73/20 (2006.01)

Patent

CA 1331018

Abstract Fluoro-containing compounds based on 4,4'-bis[2-(4- hydroxyphenyl)hexafluoroisopropyl]diphenyl ether, pro- cesees for their preparation and their use Compounds of the formula Image (I) in which A represents the radicals Image or Image in which R1 and R2 are different from one another and denote hydrogen, -NO2 or -NH2, R3 is hydrogen or halogen, represents -NO2 or -NH2, with the proviso that R1 is hydrogen, if R2 is -NO2 or -NH2 and R2 is hydrogen, if R1 is -NO2 or -NH2. The compounds are prepared from 4,4'-bis[2-(4-hydroxy- phenyl)hexafluoroisopropyl]diphenyl ether by nitration or reaction with nitrobenzenes followed by reduction of the nitro groups. They are used for the preparation of high- temperature-resistant polycondensates.

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