Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1973-11-13
1976-03-30
Warren, Charles F.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260174, 260171, 260185, 260191, 260196, 2605025, C09B 3104
Patent
active
039474356
ABSTRACT:
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.
REFERENCES:
patent: 2277243 (1942-03-01), Manz
patent: 2861067 (1958-11-01), Andrew et al.
patent: 3580901 (1971-05-01), Feeman
patent: 3814749 (1974-06-01), Feeman
Colour Index, 3rd Ed., The Society of Dyers & Colourists; England, 1971, Vol. IV, pp. 4230-4231, (C. I. Nos. 26360, 26361 & 26400).
IBID., p. 4228, (C. I. Nos. 26207 & 26210).
Brouard Claude Marie Henri Emile
Pechmeze Jacques Pierre Edmond
Sureau Robert Frederic Michel
Produits Chimiques Ugine Kuhlmann
Warren Charles F.
LandOfFree
Disazo acid compounds containing one sulphonic acid group and on does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Disazo acid compounds containing one sulphonic acid group and on, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disazo acid compounds containing one sulphonic acid group and on will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-520446