Orange anthrapyridine monomeric colorants and colorant precursor

Details Orange anthrapyridine monomeric colorants and colorant precursor Orange anthrapyridine monomeric colorants and colorant precursor

1978-04-28

1980-04-01

Higel, Floyd D.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

260377, 424 63, 426540, 546 26, 546 27, A23L 1275, C09B 514

Patent

active

041962940

ABSTRACT:
Orange colors having the anthrapyridine structure ##STR1## are disclosed wherein R.sub.1 and R.sub.2 are independently selected from among hydrogen, halos, lower alkyls, lower alkoxies, nitros, and sulfonates, R.sub.3 and R.sub.4 are independently selected from hydrogens, alkyls and alkylsulfonates of 1 through 3 carbon atoms and R.sub.5 is a lower alkyl or lower alkyl sulfonate.

REFERENCES:
patent: 3920855 (1975-11-01), Dawson et al.
patent: 4000118 (1976-12-01), Dawson et al.
patent: 4018826 (1977-04-01), Gless et al.
patent: 4096134 (1978-06-01), Otteson et al.

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