Hindered piperidine stabilizers and production thereof

Details Hindered piperidine stabilizers and production thereof Hindered piperidine stabilizers and production thereof

1995-12-27

1998-02-03

Morgan, Kriellion S.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D21130

Patent

active

057146128

ABSTRACT:
A hindered piperidine compound represented by the formula of ##STR1## wherein R.sup.1 is a 2,2,6,6-tetramethyl-4-piperidyl group of which the N-position is substituted or not, a hydrogen atom, a C.sub.1 -C.sub.18 arylalkyl group which may contain a cyclic portion, or a C.sub.7 -C.sub.18 arylalkyl group, R.sup.2 is a hydrogen atom, a C.sub.1 -C.sub.10 alkyl group which may contain a cyclic portion, a C.sub.1 -C.sub.18 alkyloxy group which may contain a cyclic portion, or a hydroxyl group, and n is an integer of 2 to 8, effectively stabilizes organic materials having a property to deteriorate by the action of light. A method for producing the compound represented by the above formula is also disclosed.

REFERENCES:
patent: 4153596 (1979-05-01), Oertel et al.
patent: 4468488 (1984-08-01), Minagawa et al.
patent: 4665185 (1987-05-01), Winter et al.
patent: 4725634 (1988-02-01), Ishii et al.
patent: 5449779 (1995-09-01), Carrozza et al.
Chemical Abstracts, vol. 118, Wo. 39632n, 1993.
Chemical Abstracts, vol. 115, Wo. 232088f, 1991.

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