Hindered hydroxyphenylalkanoates of substituted vicinal glycols

Details Hindered hydroxyphenylalkanoates of substituted vicinal glycols Hindered hydroxyphenylalkanoates of substituted vicinal glycols

1974-12-12

1976-10-19

Killos, Paul J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 4585B, 2602477Z, 26029384, 2603485R, 260465F, 260473F, 260520A, 2605707, 260609F, 260615R, C07C 6976

Patent

active

039870863

ABSTRACT:
The compounds are esters having the formula ##EQU1## wherein R.sub.1 is alkyl, cycloalkyl, alkylthioethyl or alkylpolyoxyalkylene, Z is oxygen or sulfur, R.sub.2 is the group ##SPC1##
R.sub.3 is hydrogen, alkyl, cycloalkyl, or .alpha.-methylbenzyl, R.sub.4 is alkyl or cycloalkyl, R.sub.5 is hydrogen or alkyl, provided when R.sub.3 is hydrogen, R.sub.5 is alkyl and R.sub.4 is located on the carbon atom ortho to the hydroxyl group, and A is a covalent carbon bond or lower alkylene.

REFERENCES:
patent: 3285855 (1966-11-01), Dexter et al.
patent: 3441575 (1969-04-01), Dexter et al.

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