Patent · US Expired

4-Stilbenyl-1,2,3-triazoles, process for preparing them and their use as optical brighteners

US4039531A · kind A · utility

4Cited by

7References

4Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Dieter Gunther · Kelkheim, DE
Rudiger Erckel · Eppstein, DE
Erich Schinzel
Gunter Rosch · Bad Soden am Taunus, DE

Key dates

Filing date	Sep 12, 1975
Grant date	Aug 2, 1977
Priority date	—
Expiry date	Sep 12, 1995

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07F9/65324
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Compounds of the formula (I) ##STR1## in which R is hydrogen, triphenyl-methyl or lower alkyl, which may be substituted by lower carbalkoxy, carbonamido, mono- or dialkyl carbonamido, carboxy or benzoyl, Z is cyano, carbalkoxy, carbonamido or imidazolyl, X is hydrogen, chlorine, methyl, methoxy, cyano or lower carbalkoxy, n is 1 to 3, and A is an aromatic carbocyclic group or an aromatic heterocyclic 5- or 6-membered group as well as their N-alkylated quaternary reaction products. These compounds are useful as optical brighteners and lacquers, natural or synthetic fibers and films, foils or other shaped forms made therefrom.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.