1,3,4-Oxadiazolone-(2) compounds and process for their manufactu

Details 1,3,4-Oxadiazolone-(2) compounds and process for their manufactu 1,3,4-Oxadiazolone-(2) compounds and process for their manufactu

1979-07-25

1981-01-20

Demers, Arthur P.

Harness for working animal

542442, 542443, 542444, 542454, 542456, 542458, 542459, 542136, 548144, C07D27110, C07D41310, C07D41314

Patent

active

042464030

ABSTRACT:
Novel 1,3,4-oxadiazolone-(2) compounds of the formula ##STR1## wherein Y denotes carboxy optionally functionally modified or optionally substituted phenyl or a five-membered heterocycle optionally substituted and selected from the group consisting of: furan, thiophen, oxazole, imidazole, oxadiazole, oxadiazolone, triazole, benzofuran, thionaphthalene, benzoxazole, benzimidazole, and benzotriazole, R denotes hydrogen, alkyl or optionally substituted phenyl, n denotes 0 and 1 and the rings A and B carry optionally further non-chromophoric substituents. These compounds may be used as optical brighteners.

REFERENCES:
patent: 3635960 (1972-01-01), DiGiouandel et al.
patent: 3732221 (1973-05-01), Siegrist et al.
patent: 3984399 (1976-10-01), Weber et al.
patent: 4088762 (1978-05-01), Hakim et al.
patent: 4150142 (1979-04-01), Boesch
patent: 4166176 (1979-08-01), Eckstein et al.
Elderfield Heterocyclic Compounds vol. 7, John Wiley & Sons, N. Y., N. Y., 1962 p. 528-529.

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