Triazinyl styryl-benzoxazole fluorescent dyestuffs

US4140852A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Udo Eckstein · Cologne, DE
• Horst Harnisch

Key dates

• Filing date: Oct 27, 1977
• Grant date: Feb 20, 1979
• Expiry date: Oct 27, 1997

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D251/20
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Fluorescent dyestuffs of the general formula ##STR1## wherein X denotes 0, S or N--R.sub.1, PA1 Y and Z denote halogen, hydroxyl, amino, alkoxy, aralkoxy, cycloalkoxy, aryloxy, alkylmercapto, arylmercapto, alkylamino, dialkylamino, acylamino, alkyl or aryl and PA1 R.sub.1 denotes hydrogen, alkyl, aralkyl, aryl or acyl, and PA1 The rings A and B and the cyclic and acyclic radicals R.sub.1, Y and Z can carry non-chromophoric substituents which are customary for whiteners. and PA1 The ring A, furthermore, can be fused to 1 or 2 carbocyclic, partially saturated or aromatic rings, Are suitable for the whitening of synthetic, semi-synthetic and natural organic high-molecular materials.