Water--insoluble azo colorants based on N-acetoacetyldehydrothio

Details Water--insoluble azo colorants based on N-acetoacetyldehydrothio Water--insoluble azo colorants based on N-acetoacetyldehydrothio

1997-06-13

1998-05-26

Powers, Fiona T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Azo

106 315, 106496, 524 83, C09B 6720, C09B 2933, C09D 1100, D06P 379

Patent

active

057566917

ABSTRACT:
Water-insoluble azo colorant based on N-acetoacetyldehydrothiotoluidine Compound of the formula (I) ##STR1## in which R.sub.1 and R.sub.2 independently of one another are a hydrogen atom, C.sub.1 -C.sub.4 -alkyl, C.sub.5 -C.sub.6 -cycloalkyl, a benzyl group, an unsubstituted phenyl group or a substituted phenyl group with 1 to 5, preferably 1 to 3, substituents from the group consisting of C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen, nitro, cyano, hydroxyl, CF.sub.3, CONH.sub.2, CONH(C.sub.5 -C.sub.6 -cycloalkyl), CON(C.sub.1 -C.sub.4 -alkyl).sub.2, CONH(C.sub.1 -C.sub.4 -alkyl), COO(C.sub.1 -C.sub.4 -alkyl), COO(C.sub.5 -C.sub.6 -cycloalkyl) and CONH(phenyl),

REFERENCES:
patent: 1506514 (1924-08-01), Zitscher
patent: 4602961 (1986-07-01), Hari
patent: 4625017 (1986-11-01), Puntener

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