Process for producing perylene-3, 4-dicarboxylic acid imides

US6136976A · kind A · utility

Assignee

• BASF SE

Inventors

• Arno Boehm · Mannheim, DE
• Harald Arms · Worms, DE
• Willi Helfer · Friedelsheim, DE
• Georg Henning · Ludwigshafen, DE

Key dates

• Filing date: Dec 7, 1998
• Grant date: Oct 24, 2000
• Expiry date: Dec 7, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D221/18
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Perylene-3,4-dicarboximides I ##STR1## (R.sup.1 is hydrogen; C.sub.1 -C.sub.8 -alkyl; C.sub.5 -C.sub.8 -cycloalkyl; substituted or unsubstituted phenyl or naphthyl; PA1 R.sup.2 independently at each occurrence is hydrogen; C.sub.1 -C.sub.18 -alkyl, substituted or unsubstituted aryloxy, arylthio, hetaryloxy or hetarylthio) are prepared by reacting the corresponding perylene-3,4,9,10-tetracarboxylic acid or its anhydride (II) with an amide III EQU R.sup.3 --CO--NHR.sup.1 III PA1 (R.sup.3 : C.sub.1 -C.sub.4 -alkyl or --NR.sup.4 R.sup.5 where R.sup.4 and R.sup.5 independently are hydrogen or one of the R.sup.1 alkyls, cycloalkyls, phenyls or naphthyls and where if two or more of R.sup.1, R.sup.4 and R.sup.5 are other than hydrogen they are identical) under superatmospheric pressure in the presence of an inert diluent and a transition metal catalyst.