Anthrapyridone compounds

摘要

An anthrapyridone compound of the following formula (I), which is useful for coloring synthetic resins: <IMAGE> wherein Q is -NH2, -NHCH3 or -NHCOZ where Z is phenyl or alkyl which may be substituted; X1, X2 and X3 are each hydrogen, halogen, alkyl, alkoxy, hydroxy, -NHCOR1, -CONR2R3m -COR4, -COOR5, -SO2R6 or -SO2NR7R8 where R1 and R4 are each C1-4 alkyl, R2 and R3 are each hydrogen or C1-4 alkyl, R5 and R6 are each alkyl or hydroxyalkyl and R7 and R8 are each hydrogen or C1-4 alkyl, with proviso that when Q is -NHCH3, X1, X2 and X3 are each hydrogen, halogen, alkoxy, hydroxy, -NHCOR1, -CONR2R3, -COR4, -COOR5, -SO2R6 or -SO2NR7R8. Process for producing the anthrapyridone compound is also provided.