GB309216A - Manufacture of fast azo-dyestuffs - Google Patents

Manufacture of fast azo-dyestuffs

Info

Publication number
GB309216A
GB309216A GB3546127A GB3546127A GB309216A GB 309216 A GB309216 A GB 309216A GB 3546127 A GB3546127 A GB 3546127A GB 3546127 A GB3546127 A GB 3546127A GB 309216 A GB309216 A GB 309216A
Authority
GB
United Kingdom
Prior art keywords
amino
dimethylether
hydroxynaphthoic acid
bromo
anisidine
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
GB3546127A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB3546127A priority Critical patent/GB309216A/en
Publication of GB309216A publication Critical patent/GB309216A/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
    • C09B29/10—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
    • C09B29/18—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides
    • C09B29/20—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides of the naphthalene series

Landscapes

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

Abstract

309,216. Imray, O. Y., (I. G. Farbenindustrie Akt.-Ges.). Dec, 31, 1927. Azo dyes; lakes.-Azo dyes are made by coupling diazotized 2: 4: 5-trichloroaniline with an arylide of 2: 3-hydroxynaphthoic acid. They are especially fast to light and may be used for lakes. According to examples, (1) diazotized 2:4:5- trichlcraniline is coupled with 2<1>-hydroxy-3<1>- naphthoyl-2-amino-1-anisol dissolved in caustic soda solution containing Turkey red oil and sodium Acetate; the product forms a yellowish red lake with the usual substrata. Other specified arylides are produced from 2: 3-hydroxynaphthoic acid and a- or #-naphthylamine, p-anisidine, aminohydroquinone dimethylether, 4- and 5-chlor-2-anisidine, 5-chloro-2-toluidine, dianisidine, aniline. p-phenetidine, o, m-, or p-chloraniline and m-toluidine and from 6-bromo-2 : 3- hydroxynaphthoic acid and 2-amino-5-chlorhydroquinone dimethylether. 6<1> - Bromo-2<1>-hydroxy-3<1>-naphthoyl-2-amino-5- chlorohydroquinone dimethylether is prepaered from 6-bromo-2: 3-hydroxynaphthoic acid and 2- amino - 5 - chlorobydroquinone dimethylether according to the process of Specification 23732/13. 2-Amino-5-chlorohydroquinonedimathylether is prepared by replacing the amino-groups of 5- amino-2-nitrydroquinone dimethylether by chlorine and reducing the nitro-group. Reference has been directed by the Comptroller to Specifications 6379/12, and 17279/13, [Class 15 (ii), Dyeing, Processes &c. for].
GB3546127A 1927-12-31 1927-12-31 Manufacture of fast azo-dyestuffs Expired GB309216A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3546127A GB309216A (en) 1927-12-31 1927-12-31 Manufacture of fast azo-dyestuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3546127A GB309216A (en) 1927-12-31 1927-12-31 Manufacture of fast azo-dyestuffs

Publications (1)

Publication Number Publication Date
GB309216A true GB309216A (en) 1929-04-02

Family

ID=10377983

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3546127A Expired GB309216A (en) 1927-12-31 1927-12-31 Manufacture of fast azo-dyestuffs

Country Status (1)

Country Link
GB (1) GB309216A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746454C (en) * 1939-06-02 1944-08-05 Ig Farbenindustrie Ag Process for the preparation of a water-insoluble monoazo dye

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746454C (en) * 1939-06-02 1944-08-05 Ig Farbenindustrie Ag Process for the preparation of a water-insoluble monoazo dye

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