Phenol acetals

Details Phenol acetals Phenol acetals

1975-01-20

1977-03-22

Love, Ethel G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260248A, 260327M, 2603407, C08K 513

Patent

active

040136191

ABSTRACT:
Compounds of the general formula I ##STR1## in which R.sub.1 and R.sub.5 independently of one another denote hydrogen or lower alkyl, one of R.sub.2 and R.sub.3 denotes hydroxyl and the other denotes alkyl, cycloalkyl or aralkyl, R.sub.4 denotes hydrogen or, if R.sub.3 denotes hydroxyl, additionally also denotes alkyl, cycloalkyl or aralkyl, X denotes the direct bond, or a group ##STR2## wherein R.sub.8 is hydrogen, alkyl, aralkyl or phenyl and R.sub.9 is hydrogen, alkyl, aralkyl, phenyl or the group ##STR3## wherein R.sub.1 -R.sub.5 have the above meaning, of R.sub.9 conjointly with R.sub.8 is alkylene, Y denotes oxygen or sulfur, n denotes 1, 2, 3 or 4, R.sub.6 denotes tha acid radical of an n-valent organic oxygen acid or, if n is equal to 1, additionally also denotes hydroxyl or, if n is equal to 2, additionally also denotes --O--, and R.sub.7 denotes a lower alkyl group having 1 -3 carbon atoms, or, if n is equal to 1, additionally also denotes, conjointly with R.sub.6, a group Ia ##STR4## WHEREIN R.sub.1 -R.sub.5, X and Y have the above meaning, or if n is equal to 1 and Y denotes oxygen, additionally also denotes, conjointly with R.sub.6, a group Ib ##STR5## wherein R.sub.1 - R.sub.5 and X have the above meaning, and R.sub.10 is hydroxyl or the acid radical of a monovalent organic oxygen acid, for stabilising organic material.

REFERENCES:
patent: 3347871 (1967-10-01), Harding
patent: 3388098 (1968-06-01), Harding
patent: 3401147 (1968-09-01), Smith et al.
patent: 3767615 (1973-10-01), Throckmorton et al.

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