Phenolic amides and their use as stabilizers

Details Phenolic amides and their use as stabilizers Phenolic amides and their use as stabilizers

1997-04-15

1999-06-29

Gorr, Rachel

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

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

548568, 544162, 546234, C07D29500

Patent

active

059170441

ABSTRACT:
Phenolic amides, useful as stabilizers for organic materials such as polyols and polyurethanes, possess the general formula ##STR1## wherein n is 0 to 3, R.sub.1, is alkyl of from 1 to about 6 carbon atoms, R.sub.2 is hydrogen or alkyl of from 1 to about 6 carbon atoms, R.sub.3 is hydrogen or hydrocarbyl of up to about 20 carbon atoms, optionally containing one or more heterocyclic groups, R.sub.4 is hydrocarbyl of up to about 20 carbon atoms, optionally containing one or more heterocyclic groups, or R.sub.3 and R.sub.4 together with the nitrogen atom to which they are bonded are joined together to form a heterocyclic group, optionally containing one or more additional heterocyclic atoms.

REFERENCES:
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patent: 3637865 (1972-01-01), Haring
patent: 3969530 (1976-07-01), Mauz et al.
patent: 4066614 (1978-01-01), Oppelt et al.
patent: 4228297 (1980-10-01), Haeberli et al.
patent: 5206414 (1993-04-01), Evans et al.
Minasyan et al; Phenolic acid Derivatives; Arm, Khim, Zh. 39(3), 169-74 1986, (abstract).

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