GB452454A - Process for the manufacture of monoazodyestuffs - Google Patents

Process for the manufacture of monoazodyestuffs

Info

Publication number
GB452454A
GB452454A GB5885/35A GB588535A GB452454A GB 452454 A GB452454 A GB 452454A GB 5885/35 A GB5885/35 A GB 5885/35A GB 588535 A GB588535 A GB 588535A GB 452454 A GB452454 A GB 452454A
Authority
GB
United Kingdom
Prior art keywords
amino
acid
methoxybenzene
aralkyl
nitro
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
GB5885/35A
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 GB452454A publication Critical patent/GB452454A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B29/00Monoazo dyes prepared by diazotising and coupling
    • C09B29/02Monoazo dyes prepared by diazotising and coupling from diazotised o-amino-hydroxy compounds

Landscapes

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

Abstract

Azo dyes are made by coupling in acid medium diazo compounds of amines of the general formula <FORM:0452454/IV/1> in which x=alkoxy, aralkoxy or aryloxy and R=aryloxy or the amino group, in which the hydrogen atoms may be wholly substituted by alkyl, aryl or aralkyl, with 2-amino-8-naphthol-6-sulphonic acid or a substitution product thereof. They dye wool in even blue shades fast to fulling. The dyeings have a good colour in artificial light. In examples the following dyes are described: (1) and (2) 5 - nitro - 2 - amino - 1 - methoxybenzene - 3 - sulphoethylanilide --> 2 : 8 : 6- acid or its N - methyl derivative; (3) 5 - nitro - 2 - amino - 1 - methoxybenzene - 3 - sulphonic acid phenyl ester --> 2 : 8 : 6-acid. A sample has been furnished under Sect. 2 (5) of the dyestuff 5 - nitro - 2 - amino - 1 - methoxybenzene - 3 - sulphomethylbenzylamide --> N-methyl-2 : 8 : 6-acid. Specifications 1397/09 and 10462/09, [both in Class 2 (iii)], are referred to. The Specification as open to inspection under Sect. 91 states that x in the general formula above may be an etherified hydroxyl group, R may be alkyl, aryl, aralkyl, alkoxy or aralkoxy and that the hydrogen atoms of the amino group may be partly substituted by alkyl, aryl or aralkyl. This subject-matter does not appear in the Specification as accepted.
GB5885/35A 1934-02-24 1935-02-23 Process for the manufacture of monoazodyestuffs Expired GB452454A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE452454X 1934-02-24

Publications (1)

Publication Number Publication Date
GB452454A true GB452454A (en) 1936-08-24

Family

ID=6538656

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5885/35A Expired GB452454A (en) 1934-02-24 1935-02-23 Process for the manufacture of monoazodyestuffs

Country Status (1)

Country Link
GB (1) GB452454A (en)

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