GB411180A - The manufacture of water-insoluble azo dyestuffs - Google Patents

The manufacture of water-insoluble azo dyestuffs

Info

Publication number
GB411180A
GB411180A GB3470432A GB3470432A GB411180A GB 411180 A GB411180 A GB 411180A GB 3470432 A GB3470432 A GB 3470432A GB 3470432 A GB3470432 A GB 3470432A GB 411180 A GB411180 A GB 411180A
Authority
GB
United Kingdom
Prior art keywords
carboxylic acid
acid
water
methoxy
insoluble azo
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
GB3470432A
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 GB3470432A priority Critical patent/GB411180A/en
Publication of GB411180A publication Critical patent/GB411180A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Water-insoluble azo dyes are made in substance or on the fibre by coupling a diazotized aminopyrene which may be substituted by groups not inducing solubility in water with a coupling component, e.g. arylides of the following acids: 2 : 3-oxynaphthoic acid, 2 : 3-oxyanthracene-carboxylic acid (cf. Specification 367,907), 2 : 3-oxyphenanthrene-carboxylic acid (see Specification 353,538), 2 : 3-oxycarbazole-carboxylic acid (see Specification 343,164) and 2-hydroxy-a -benzocarbazole-3-carboxylic acid (Specification p 330,643, [Class 2 (iii)]). Grey to blue to violet to green shades fast to boiling and chlorine are obtained. In examples dyes from the following components are described: 1-aminopyrene, 2-amino-1-methoxypyrene and 1-methoxy-2-aminodibrompyrene; the anilide, m-nitraniline and b -naphthalide of 2 - 3-oxynaphthoic acid, the o - toluidide of 2 - oxyanthracene - 3 - carboxylic acid, the p-chloranilide of 2-hydroxycarbazole-3-carboxylic acid. 2 - Amino - 1 - methoxypyrene is made by sulphonating pyrene, fusing the resulting 1-sulphoric acid with alkali, methylating, nitrating and reducing. 1 - Methoxy - 2 - aminodibrompyrene is obtainable by brominating 1-methoxy-2-nitropyrene and reducing.
GB3470432A 1932-12-07 1932-12-07 The manufacture of water-insoluble azo dyestuffs Expired GB411180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3470432A GB411180A (en) 1932-12-07 1932-12-07 The manufacture of water-insoluble azo dyestuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3470432A GB411180A (en) 1932-12-07 1932-12-07 The manufacture of water-insoluble azo dyestuffs

Publications (1)

Publication Number Publication Date
GB411180A true GB411180A (en) 1934-06-07

Family

ID=10368918

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3470432A Expired GB411180A (en) 1932-12-07 1932-12-07 The manufacture of water-insoluble azo dyestuffs

Country Status (1)

Country Link
GB (1) GB411180A (en)

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