GB277756A - The manufacture of new intermediate compounds and of azo dyestuffs therefrom - Google Patents

The manufacture of new intermediate compounds and of azo dyestuffs therefrom

Info

Publication number
GB277756A
GB277756A GB1605226A GB1605226A GB277756A GB 277756 A GB277756 A GB 277756A GB 1605226 A GB1605226 A GB 1605226A GB 1605226 A GB1605226 A GB 1605226A GB 277756 A GB277756 A GB 277756A
Authority
GB
United Kingdom
Prior art keywords
acid
oxy
dyes
dinaphthylurea
diazotized
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1605226A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
British Dyestuffs Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by British Dyestuffs Corp Ltd filed Critical British Dyestuffs Corp Ltd
Priority to GB1605226A priority Critical patent/GB277756A/en
Publication of GB277756A publication Critical patent/GB277756A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/24—Monoazo dyes prepared by diazotising and coupling from coupling components containing both hydroxyl and amino directing groups
    • C09B29/28—Amino naphthols
    • C09B29/30—Amino naphtholsulfonic acid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Artificial Filaments (AREA)

Abstract

277,756. British Dyestuffs Corporation, Ltd., Baddiley, J., Chorley, P., and Brightman, R. June 25, 1926. Ureas.-Unsymmetrical ureas are obtained by treating with phosgene an equimolecular mixture of 2 : 8 : 6-aminonaphthol sulphonic acid or its salts with an aminoacetanilide or a sulphonated amine of the benzene or naphthalene series, other than an aminonaphthol sulphonic acid or a sulphonated diamine or a monoformyl derivative of the latter, in the presence of an alkaline acetate, carbonate or hydroxide. The production of p - acetamidophenyl - (8-oxy-6-sulpho-2-naphthyl)- urea, 8<1>-oxy-1 2<1>-dinaphthylurea-4 : 6-<1>-disulphonic acid and 8-oxy-2 : 2<1>-dinaphthylurea-6 : 6<1> disulphonic acid from the 2:8: 6-acid and paminoacetanilide, naphthionic acid, and 2-naphthylamine-6-sulphonic acid, is described in examples. Azo dyes dyeing cotton or regenerated cellulose silks are obtained by coupling the above ureas with diazo compounds. In examples, (1) diazotized dehydrothiotoluidine sulphonic acid is coupled with p-acetaminophenyl-(8-oxy-6-sulpho- 2-naphthyl)-urea. the product dyes viscose silk in bordeaux shades: while the corresponding dyestuff from p-chloraniline dyes viscose silk an even red shade; if p-aminoazobenzene sulphonic acid is used as diazo component, the product dyes cotton a claret shade, while the dyestuff obtained by using as diazo component the aminoazo compound obtained by coupling diazotized metanilic acid with a-naphthylamine dyes cotton blue, (2) diazotized p-chloraniline is coupled with 8<1>-oxy- 1 : 2<1>-dinaphthylurea-4 : 6<1>-disulphonic acid: the product dyes viscose silk red, while the disazo dyestuff from dianisidine dyes cotton violet, and (3) diazotized p-chloraniline is coupled with 8- oxy-2 : 2<1>-dinaphthylurea-6 : 6<1>-disulphonic acid; the product dyes viscose silk red.
GB1605226A 1926-06-25 1926-06-25 The manufacture of new intermediate compounds and of azo dyestuffs therefrom Expired GB277756A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1605226A GB277756A (en) 1926-06-25 1926-06-25 The manufacture of new intermediate compounds and of azo dyestuffs therefrom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1605226A GB277756A (en) 1926-06-25 1926-06-25 The manufacture of new intermediate compounds and of azo dyestuffs therefrom

Publications (1)

Publication Number Publication Date
GB277756A true GB277756A (en) 1927-09-26

Family

ID=10070265

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1605226A Expired GB277756A (en) 1926-06-25 1926-06-25 The manufacture of new intermediate compounds and of azo dyestuffs therefrom

Country Status (1)

Country Link
GB (1) GB277756A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2824866A (en) * 1953-12-18 1958-02-25 Saul & Co Disazo dyestuffs and their metal complex compounds
US5554738A (en) * 1987-04-27 1996-09-10 Ciba-Geigy Corporation Acyl-aryl disazo having a 6-ureido-1-hydroxy-naphthalene-3-sulfonic acid coupling component

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2824866A (en) * 1953-12-18 1958-02-25 Saul & Co Disazo dyestuffs and their metal complex compounds
US5554738A (en) * 1987-04-27 1996-09-10 Ciba-Geigy Corporation Acyl-aryl disazo having a 6-ureido-1-hydroxy-naphthalene-3-sulfonic acid coupling component

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