Fluoro-containing compounds based on 4,4'-bis[2-(4-hydroxyphenyl

Details Fluoro-containing compounds based on 4,4'-bis[2-(4-hydroxyphenyl Fluoro-containing compounds based on 4,4'-bis[2-(4-hydroxyphenyl

1990-08-20

1992-01-14

Siegel, Alan

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

Organic compounds

Oxygen containing

568637, 526937, C07C 43225, C07C 4302

Patent

active

050813153

ABSTRACT:
Compounds of the formula ##STR1## in which A represents the radicals ##STR2## in which R.sup.1 and R.sup.2 are different from one another and denote hydrogen, --NO.sub.2 or --NH.sub.2, R.sup.3 is hydrogen or halogen, X represents --NO.sub.2 or --NH.sub.2, with the proviso that R.sup.1 is hydrogen, if R.sup.2 is --NO.sub.2 or --NH.sub.2 and R.sup.2 is hydrogen, if R.sup.1 is --NO.sub.2 or --NH.sub.2.
The compounds are prepared from 4,4'-bis[2-(4-hydroxyphenyl)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.

REFERENCES:
patent: 3489815 (1970-01-01), Kraus

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