Piperazine-piperidine compounds for use as stabilizers for organ

Details Piperazine-piperidine compounds for use as stabilizers for organ Piperazine-piperidine compounds for use as stabilizers for organ

1990-07-19

1994-07-26

Shah, Mukund J.

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

Organic compounds

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

540575, 544113, 544114, 544198, 544209, 544212, 544213, 544219, 544357, 544364, 544383, 544386, 544389, 544398, 544402, C07D40104, C07D40114

Patent

active

053328167

ABSTRACT:
The present invention relates to novel piperazine-piperidine compounds of the general formula (I) ##STR1## in which R.sub.1 is e.g. hydrogen or methyl, R.sub.2 is e.g. ethylene, m is zero or 1 and n is e.g. 1, and when n is 1, A is e.g. 2,2-dimethyl-1-propanoyl, n-butoxycarbonyl, n-tetradecyloxycarbonyl or 2,4-bis[N-butyl-(2',2',6',6'-pentamethyl-4'-piperidyl)amino]triazin-6-yl.
The said compounds are effective as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials.

REFERENCES:
patent: 4315859 (1982-02-01), Nikles
patent: 4316025 (1982-02-01), Cantatore et al.
patent: 4528374 (1985-07-01), Nikles
patent: 4695599 (1987-09-01), Cantatore
patent: 5030729 (1991-07-01), Cantatore et al.
patent: 5187275 (1993-02-01), Borzatta et al.
Derwent 84-214929/35, 1984.
C.A. 102, 7684j (1985).

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