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AssigneeProduits Chimiques Ugine Kuhlmann
InventorsJacques Pierre Edmond Pechmeze, Robert Frederic Michel Sureau, Claude Marie Henri Emile Brouard
Estimating the term…
The disazo compounds of the formula: ##SPC1## In which X is fixed in position 3 or 4 and represents ##EQU1## Y represents hydrogen, chlorine, methoxy or nitro and E represents the residue N-ethyl-N-(m or p-sulphobenzyl)-4-amino-phenyl or 4-phenyl-amino-5-sulpho-naphthyl(1). Process for the preparation of the disazo compounds claimed in claim 1 wherein .alpha.-naphthylamine is coupled with the diazo derivative of an amine of the formula: ##SPC2## In which X and Y have the same significance as in claim 1, the monoazo dyestuff thus obtained of the formula: ##SPC3## Is diazotised and the diazo-monoazo derivative is coupled with N-ethyl-N-(m- or p-sulphobenzyl)aniline or 1-phenyl-amino-naphthalene-8-sulphonic acid.
A disazo compound of the formula:
A disazo compound of the formula:
A disazo compound of the formula:
The 3-{4-[N-ethyl-N-(sulphobenzyl)-4-aminophenylazo]-naphthyl (1) azo}-phenylphosphonic acid.
The 3-{4-[4-phenylamino-5-sulpho-naphthyl(1) azo]naphthyl(1) azo}-phenylphosphonic acid.
The 3-{4-[N-ethyl-N-(sulphobenzyl)-4-aminophenylazo]naphthyl (1) azo}-phenyl-methyl-phosphinic acid.
The 3-{4-[4-phenylamino-5 sulpho-naphthyl (1) azo]naphthyl(1) azo}-phenyl-methyl-phosphinic acid.
Dependencies are inferred from the claim text.