N-Substituted polyalkylpiperidine-4-spirooxazolones

Details N-Substituted polyalkylpiperidine-4-spirooxazolones N-Substituted polyalkylpiperidine-4-spirooxazolones

1982-09-30

1983-12-06

Bond, Robert T.

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

Organic compounds

Chalcogen in the nitrogen containing substituent

544230, 546 19, 524102, C07D49810, C07D49820

Patent

active

044195125

ABSTRACT:
Compounds of the formulae Ia and Ib ##STR1## wherein n is 1 or 2, R.sup.1 is an aliphatic or aromatic acyl radical, carbamoyl radical or --CH.sub.2 CN, and R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are as defined in claim 1, have a much lower basicity than corresponding known compounds, in which R.sup.1 is hydrogen or a hydrocarbon radical, but have at least as good a light stabilizing action as the known compounds. This is a substantial advantage for specific substrates.

REFERENCES:
patent: 4110334 (1978-08-01), Mayer et al.
patent: 4220773 (1980-09-01), Wiener et al.
patent: 4241208 (1980-12-01), Murayama et al.
patent: 4263505 (1981-04-01), Slongo et al.

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