3-(Dihydrobenzofuran-5-yl)benzofuran-2-ones as stabilizers

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

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549305, 549307, 524109, C07D30728

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054281776

ABSTRACT:
Novel compounds of formula (1) ##STR1## wherein R.sub.1 is hydrogen, alkyl or alkaryl, 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 and R.sub.8 are hydrogen or alkyl, R.sub.9 and R.sub.9 ' are hydrogen, alkyl or phenyl, and R.sub.10 is hydrogen or alkyl, are disclosed as stabilisers for protecting organic materials against thermal, oxidative or light-induced degradation.

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