Water-insoluble disazo colorants having hetero-bicyclic methylen

Details Water-insoluble disazo colorants having hetero-bicyclic methylen Water-insoluble disazo colorants having hetero-bicyclic methylen

1988-11-10

1991-06-25

Lee, Mary C.

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

Organic compounds

Azo

534573, 534581, 534761, 534887, 548359, C09B 3312, D06P 104, D06P 324, D06P 352, D06P 379

Patent

active

050268317

ABSTRACT:
The invention relates to compounds of the formula (I) ##STR1## where D.sup.1 and D.sup.2 are each independently of each other unsubstituted or substituted aryl or hetaryl. The compounds are obtained by diazotizing one or more amines of the formula D-NH.sub.2 where D has the meaning D.sup.1 or D.sup.2 as per the formula (I) and coupling with 0.5 mole of 1,5-diazabicyclo[3.3.0]octane-2,4,6,8-tetrone per mole of total reacting diazonium salts. Depending on the presence and length of alkyl chains the compounds are suitable for use as pigments, disperse dyes or even fat dyes.

REFERENCES:
patent: 2115030 (1938-04-01), McNally et al.
patent: 2822247 (1974-07-01), Ozutsumi et al.
patent: 3600375 (1971-08-01), Wang et al.
patent: 3694216 (1972-09-01), Jenkins
patent: 3706725 (1972-12-01), Ozutsumi et al.
patent: 3882099 (1975-05-01), L'Eplattenier et al.
G. Fritsch et al., Arch. Pharm. (Weinheim), 319, 646-654 (1986).

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