GB282682A - Process for the manufacture of azo dyestuffs which are insoluble in water - Google Patents

Process for the manufacture of azo dyestuffs which are insoluble in water

Info

Publication number
GB282682A
GB282682A GB34491/27A GB3449127A GB282682A GB 282682 A GB282682 A GB 282682A GB 34491/27 A GB34491/27 A GB 34491/27A GB 3449127 A GB3449127 A GB 3449127A GB 282682 A GB282682 A GB 282682A
Authority
GB
United Kingdom
Prior art keywords
acid
components
aminocarbazole
amino
coupling
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
GB34491/27A
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 GB282682A publication Critical patent/GB282682A/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

282,682. I. G. Farbenindustrie Akt.- Ges. Dec. 22, 1926, [Convention date]. Azo dyes yielding violet shades are produced in substance, on a substratum, or on the fibre by coupling diazo compounds of monoaminocarbazoles or derivatives thereof with arylides of 2 :3-oxynaphthoic acid. In an example cotton yarn is impregnated with the #-naphthalide of 2 : 3-oxynapthoic acid and developed in a solution of diazotised 2-aminocarbazole. The dianisidide of 2 : 3-oxynaphthoic acid and 2-amino-3 : 6-di-chlorocarbazole are also specified as components. 2-Amino-3 : 6-dichlorocarbazole is prepared from carbazole by chlorination, nitration and reduction. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the o-toluidide. naphthylamides, p-phenelidide and p-anisidide of 2 : 3-oxyna,phthoic acid as coupling components and 1-, 3- or 4-aminocarbazole as diazo components. This subject-matter does not appear in the Specification as accepted.
GB34491/27A 1926-12-22 1927-12-20 Process for the manufacture of azo dyestuffs which are insoluble in water Expired GB282682A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE282682X 1926-12-22

Publications (1)

Publication Number Publication Date
GB282682A true GB282682A (en) 1929-03-20

Family

ID=6042169

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34491/27A Expired GB282682A (en) 1926-12-22 1927-12-20 Process for the manufacture of azo dyestuffs which are insoluble in water

Country Status (1)

Country Link
GB (1) GB282682A (en)

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