Piperidine stabilizers
US4197236A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1978 |
| Grant date | Apr 8, 1980 |
| Priority date | — |
| Expiry date | Aug 7, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D211/58
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of the general formula I ##STR1## or their acid addition salts in which one of R.sub.1 and R.sub.3 is --OH and the other is hydrogen and R.sub.2 denotes C.sub.1 -C.sub.12 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl, C.sub.6 -C.sub.10 -aryl or C.sub.7 -C.sub.9 -aralkyl and R.sub.4 and R.sub.5 are hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl, C.sub.6 -C.sub.10 -aryl or C.sub.7 -C.sub.9 -aralkyl and R.sub.6 denotes hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl, phenyl or benzyl and R.sub.7 is hydrogen or C.sub.1 -C.sub.8 -alkyl and R.sub.8 is hydrogen, oxyl, C.sub.1 -C.sub.12 -alkyl, C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.4 -alkinyl, C.sub.2 -C.sub.21 -alkoxyalkyl, C.sub.7 -C.sub.8 -aralkyl, 2,3-epoxypropyl, an aliphatic acyl group with 1-4 C atoms or one of the groups --CH.sub.2 COOR.sub.9, --CH.sub.2 --CH(R.sub.10)--OR.sub.11, --COOR.sub.12 or -- CONHR.sub.12, in which R.sub.9 is C.sub.1 -C.sub.12 -alkyl, C.sub.3 -C.sub.6 -alkenyl, phenyl, C.sub.7 -C.sub.8 -aralkyl or cyclohexyl and R.sub.10 is hydrogen, methyl or phenyl and R.sub.11 denotes hydrogen or an aliphatic or aromatic, araliphatic or alicyclic acyl group with 1-18 C atoms, in wh…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.