Claims
- 1. A compound having one of the formulae ##STR27## wherein, R.sub.1 and R.sub.4 independently represent hydrogen, alkyl having from 1 to 24 carbon atoms, hydroxyalkyl having from 1 to 12 carbon atoms, haloalkyl having from 1 to 12 carbon atoms, cyanoalkyl having from 2 to 12 carbon atoms, aminoalkyl having from 1 to 12 carbon atoms, alkenyl having from 2 to 14 carbon atoms, and unsubstituted hydrocarbon aralkyl having from 7 to 14 carbon atoms;
- R.sub.4 optionally also represents oxygen, hydroxy or alkoxy;
- R.sub.2 and R.sub.3 independently represent alkyl having from 1 to 12 carbon atoms, haloalkyl having from 1 to 12 carbon atoms, cyanoalkyl having from 2 to 12 carbon atoms, aminoalkyl having from 1 to 12 carbon atoms, cycloalkyl having from 5 to 14 carbon atoms, hydroxy-cycloalkyl having from 5 to 14 carbon atoms, alkenyl having from 2 to 14 carbon atoms, and unsubstituted hydrocarbon aralkyl having from 7 to 14 carbon atoms;
- R.sub.5, R.sub.6, R.sub.7, R.sub.8 independently represent alkyl having from 1 to 12 carbon atoms, haloalkyl having from 1 to 12 carbon atoms, cyanoalkyl having from 2 to 12 carbon atoms, aminoalkyl having from 1 to 12 carbon atoms, alkenyl having from 2 to 14 carbon atoms, and unsubstituted hydrocarbon aralkyl having from 7 to 14 carbon atoms;
- so that when R.sub.2, R.sub.3 is cyclized having from 4 to 6 unsubstituted methylene groups, and R.sub.5, R.sub.6 is also cyclized having from 4 to 6 unsubstituted methylene groups, each cyclized substituent is different;
- R.sub.7, R.sub.8 additionally also represent hydrogen; and,
- R.sub.7, R.sub.8, may when taken together with the carbon atom to which they are attached, form a polymethylene ring having from 5 to 6 carbon atoms.
- 2. A compound of claim 1 selected from the group consisting of 1,2-ethane-bis-(N.sup.1 -3,3,5,5-tetramethyl-2-piperazinone);
- N.sup.1 -dodecyl-3,3,5,5tetramethyl-2-piperazinone;
- N.sup.1 -t-octyl-3,3,5,5tetramethyl-2-piperazinone;
- N.sup.4 -t-octyl-3,3,6,6-tetramethyl-2-piperazinone;
- N.sup.1 -phenyl-3,3,5,5-tetramethyl-2-piperazinone;
- N.sup.1 -t-butyl-3,3-dimethyl-5,5-pentamethylene-2-piperazinone;
- N.sup.1 -t-butyl-3,3-dimethyl-5,5-pentamethyl-2-piperazinone;
- N.sup.1 -butyl-3,3,5,5,7-pentamethyl-1,4-diazepine-2-one;
- N.sup.1 -t-octyl-3,3-pentamethylene-5,5-dimethyl-2-piperazinone-N.sup.4 -oxyl;
- N.sup.1 -isopropyl-3,3,5-trimethyl-4-isobutyl-2-piperazinone;
- N.sup.1 -isopropyl-3,5,5-trimethyl-4-phenyl-2-piperazinone;
- 3-isobutyl-N.sup.4 -hydroxy-N.sup.1 -isopropyl-3,5,5-trimethyl-2-piperazinone; and,
- 3-ethyl-N.sup.4 -hydroxy-N.sup.1 -isopropyl-3,5,5-trimethyl-2-piperazinone.
CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part application of Ser. No. 835,065 filed Sept. 21, 1977, now U.S. Pat. No. 4,190,571.
US Referenced Citations (3)
Continuation in Parts (1)
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Number |
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835065 |
Sep 1977 |
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