GB302601A - Manufacture of azo-dyestuffs insoluble in water - Google Patents

Manufacture of azo-dyestuffs insoluble in water

Info

Publication number
GB302601A
GB302601A GB37255/28A GB3725528A GB302601A GB 302601 A GB302601 A GB 302601A GB 37255/28 A GB37255/28 A GB 37255/28A GB 3725528 A GB3725528 A GB 3725528A GB 302601 A GB302601 A GB 302601A
Authority
GB
United Kingdom
Prior art keywords
anisidide
aminotoluene
chloro
oxynaphthoic acid
water
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
GB37255/28A
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
Publication of GB302601A publication Critical patent/GB302601A/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

302,601. I. G. Farbenindustrie Akt.- Ges. Dec. 17, 1927, [Convention date]. Right to Patent relinquished. Azo dyes ; lakes.-Azo dyes, insoluble in water and of good fastness, are produced in substance by coupling diazotized 3 : 6- or 5 : 6-dihalogen-2- aminotoluenes with arylides of 2 : 3-oxynaphthoic acid. The following example is specified :-The yellowish' red dyestuff 3: 6-dichloro-2-aminotoluene # the 4<1>-anisidide of 2:3-oxynaphthoic acid is produced in substance. A table is also given showing the shades of the following dyestuffs and of the lakes therefrom :-5 : 6-dichloro- 2-aminotoluene # the 2<1>- or 4<1>-anisidide, 4<1>- or 5<1>-chloro-2<1>-anisidide, 2<1>-chloro-4<1>-anisidide, and 1<1>-naphthylamide of 2 : 3-oxynaphthoic acid, and 5-bromo-6-chloro-2-aminotoluene # the 4<1>- anisidide. 2<1>: 5<1>-dimethoxyanilide, and 1-naphthylamide of 2 : 3-oxynaphthoic acid. Specifications 6379/12, and 17279/13, [Class 15 (ii), Dyeing, Processes &c. for], are referred to. 5-Bromo-6-chloro-2-aminotoluene is made from 6-chloro-2-aminotoluene by acetylation, bromination and hydrolysis.
GB37255/28A 1927-12-17 1928-12-17 Manufacture of azo-dyestuffs insoluble in water Expired GB302601A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE302601X 1927-12-17

Publications (1)

Publication Number Publication Date
GB302601A true GB302601A (en) 1930-03-06

Family

ID=6106798

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37255/28A Expired GB302601A (en) 1927-12-17 1928-12-17 Manufacture of azo-dyestuffs insoluble in water

Country Status (1)

Country Link
GB (1) GB302601A (en)

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