1,4-diketopyrrolo-¬3,4-c|-pyrroles

Details 1,4-diketopyrrolo-¬3,4-c|-pyrroles 1,4-diketopyrrolo-¬3,4-c|-pyrroles

C - Chemistry, Metallurgy

09

B

6/27, 260/298.5

C09B 57/00 (2006.01) C07D 487/04 (2006.01) C08K 5/3415 (2006.01) D06P 1/00 (2006.01)

Patent

CA 1230341

3-14487/+ Novel 1,4-diketopyrrolo-[3,4-c]-pyrroles Abstract Compounds of the formula Image , in which R1 and R2 are isocyclic aromatic radicals or hetero-mono-, bi- or tricyclic aromatic radicals or heterocyclic aromatic radicals containing one hetero- cyclic ring and one or more fused-on benzene rings, and R3 and R4 are alkyl, alkenyl or alkynyl groups, the group of the formula -COR8 or -CON(R6)(R7), the group epoxy- ethyl or aryl, the group -CR11 = Y or the group of the formula Image in which R6, R7, R8, R11, R17, R18 and Y are typically hydrogen or an alkyl group, are suitable for dyeing high molecular weight organic material.

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