Patent ID: 7063806
Filing Date: 2006-06-20
Classification: C07D,C09B,C09K,H01L,Y10S

Abstract:
1. A fluorescent diketopyrrolopyrrole of the formula I wherein R 1 and R 2 may be the same or different and are selected from a C 1 –C 25 alkyl group, an allyl group, which can be substituted one to three times with C 1 –C 3 alkyl, a cycloalkyl group, an alkenyl group, a cycloalkenyl group, an alkynyl group, a heterocyclic group, halogen, haloalkyl, haloalkenyl, haloalkynyl, a ketone or aldehyde group, an ester group, a carbamoyl group, a silyl group, a siloxanyl group, A 3 or —CR 3 R 4 —(CH 2 ) m -A 3 wherein R 3 and R 4 independently from each other stand for hydrogen or C 1 –C 4 alkyl, or phenyl which can be substituted one to three times with C 1 –C 3 alkyl, A 3 stands for aryl which can be substituted one to three times with C 1 –C 8 alkyl and/or C 1 –C 8 alkoxy, and m stands for 0, 1, 2, 3 or 4, wherein C 1 –C 25 alkyl or —CR 3 R 4 —(CH 2 ) m -A 3 can be substituted with a functional group capable of increasing the solubility in water A 1 and A 2 independently from each other stand for wherein R 5 to R 11 may be the same or different and are selected from hydrogen, C 1 –C 25 alkyl, cycloalkyl, aralkyl, alkenyl, cycloalkenyl, alkynyl, hydroxyl, a mercapto group, alkoxy, alkylthio, an aryl ether group, an aryl thioether group, aryl, a heterocyclic group, halogen, haloalkyl, haloalkenyl, haloalkynyl, a cyano group, an aldehyde group, a carbonyl group, a carboxyl group, an ester group, a carbamoyl group, an amino group, an alkylamino group, a di(alkyl)amino group, a nitro group, a silyl group, a siloxanyl group, a substituted or unsubstituted vinyl group, a substituted or unsubstituted arylamino group and a substituted or unsubstituted diarylamino group, or two adjacent substituents R 5 to R 11 can form an aromatic or aliphatic fused ring system, wherein at least two adjacent substituents R 5 to R 11 form an aromatic or aliphatic fused ring system, or at least one substituent R 5 to R 11 is a substituted or unsubstituted vinyl.