3,5-Disubstituted-4-hydroxybenzyl derivative

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal


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2605709, 260611A, 260624R, 260570R, C07C 3700




A new series of compounds having the following formula is disclosed: ##STR1## wherein R.sub.1 and R.sub.2 are independently aralkyl or alkyl with the proviso that the aralkyl group contains no branching on the carbon alpha to the phenylene group and the alkyl group contains no branching on the carbon alpha to the phenylene group but has at least one branch on the carbon beta to the phenylene group; R.sub.3 is hydroxy, --OR.sub.4 or ##STR2## R.sub.4, R.sub.5, and R.sub.6 are alkyl, cycloalkyl, aralkyl, aryl, or alkaryl and R.sub.6 may additionally be hydrogen; said compounds are useful as antioxidants for polyolefins.

patent: 3006969 (1961-10-01), Koetitz
patent: 3052728 (1962-09-01), Rocklin
patent: 3081335 (1963-03-01), Morris et al.
patent: 3091645 (1963-05-01), Rocklin
patent: 3496211 (1970-02-01), Dexter et al.


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