N-substituted benzimidazole-2-carboxanilides

Details N-substituted benzimidazole-2-carboxanilides N-substituted benzimidazole-2-carboxanilides

1989-08-15

1991-04-16

Lee, Mary C.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548327, 548328, C07D23504

Patent

active

050083970

ABSTRACT:
Compounds of the general formula (I) ##STR1## where R.sup.1 and R.sup.2 are each H, Cl, alkyl, alkoxy, substituted or unsubstituted phenyl or phenylalkyl, R.sup.3 and R.sup.4 are each H, alkyl, oxaalkyl, alkoxy, oxaalkoxy, substituted or unsubstituted phenyl, phenylalkyl, phenoxy, phenylalkoxy, alkylcarbonylamino, benzoylamino, alkanoyloxy or benzoyloxy, n is 1 or 2 and R.sup.5 is -- when n is 1-alkyl, hydroxyalkyl, cycloalkyl, alkenyl, oxaalkyl, phenylalkyl or ##STR2## or -- when n is 2-akylene, cycloalkylene, alkenylene, oxaalkylene or ##STR3## where m is from 2 to 4, R.sup.6 is alkyl, alkenyl, cycloalkyl, phenylalkyl, substituted or unsubstituted phenyl or naphthyl, and R.sup.7 is alkylene, alkenylene, cycloalkylene, substituted or unsubstituted phenylene, naphthylene, diphenylene, ##STR4## are effective light stabilizers for organic materials, in particular for polymers.

REFERENCES:
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patent: 3907700 (1975-09-01), Grier
patent: 4011236 (1977-03-01), Grier
Chemische Berichte, vol. 92, 1959, R. Gompper et al., pp. 550-563.
J. Chem. Soc., Sect. C, 1967, G. Holan et al., pp. 20-25, "2-Trihalogenomethylbenzazoles".
Chemical Abstracts, vol. 101, 1984, p. 594, 22395a.
Chemical Abstracts, vol. 98, 1983, p. 571, 143322r.
Bulletin de la Societe Chimique de France, No. 10, 1966, R. Salle et al., p. 3368.

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