1,7-diaroxy- or 1,7-arylthio-substituted perylene-3,4,9,10-tetracarboxylic acids, their dianhydrides and diimides

US6143905A · kind A · utility

Assignee

• BASF SE

Inventors

• Arno Bohm · Mannheim, DE
• Harald Arms · Worms, DE
• Georg Henning · Ludwigshafen, DE
• Peter Blaschka · Ludwigshafen, DE

Key dates

• Filing date: Jun 18, 1998
• Grant date: Nov 7, 2000
• Expiry date: Jun 18, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K11/06
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

1,7-Disubstituted perylene-3,4,9,10-tetracarboxylic dianhydrides I and perylene-3,4,9,10-tetracarboxylic acids Ia ##STR1## where R is substituted or unsubstituted aryloxy, arylthio, hetaryloxy or hetarylthio, their preparation and use as pigments, laser dyes and precursors for preparing fluorescent dyes, polymeric colorants, pigments and pigment additives, and 1,7-disubstituted perylene-3,4,9,10-tetracarboxylic diimides (VI) as intermediates thereof.