3-(2-acyloxyethoxyphenyl)benzofuran-2-ones for use as stabilizer

Details 3-(2-acyloxyethoxyphenyl)benzofuran-2-ones for use as stabilizer 3-(2-acyloxyethoxyphenyl)benzofuran-2-ones for use as stabilizer

1993-09-20

1995-06-27

Ivy, C. Warren

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

549 60, 549222, 549305, 562470, 562426, 562444, C07D30728, C07D25130, C07C 5968

Patent

active

054281628

ABSTRACT:
Novel compounds of the formula (1), ##STR1## in which R.sub.1 is hydrogen or acyl, R.sub.2 to R.sub.5 are independently hydrogen, chloro, alkyl phenylalkyl, aryl, cycloalkyl, alkoxy, alkylthio, hydroxy, amino or substituted amino, R.sub.6 is hydrogen, R.sub.7 to R.sub.10 are independently hydrogen, alkyl or alkoxy, R.sub.17 or R.sub.19 is hydrogen or alkyl, and R.sub.18 is hydrogen, alkyl, aralkyl or aryl, are described for use as stabilizers for organic materials against thermal, oxidative or light-induced degradation.

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