GB424365A - Manufacture of monoazo dyestuffs insoluble in water - Google Patents

Manufacture of monoazo dyestuffs insoluble in water

Info

Publication number
GB424365A
GB424365A GB33311/33A GB3331133A GB424365A GB 424365 A GB424365 A GB 424365A GB 33311/33 A GB33311/33 A GB 33311/33A GB 3331133 A GB3331133 A GB 3331133A GB 424365 A GB424365 A GB 424365A
Authority
GB
United Kingdom
Prior art keywords
lacquers
amino
nitrobenzene
coupling
oxynaphthoic
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
GB33311/33A
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.)
Novartis AG
Original Assignee
JR Geigy 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 JR Geigy AG filed Critical JR Geigy AG
Publication of GB424365A publication Critical patent/GB424365A/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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/18—Containing nitrogen-to-nitrogen bonds, e.g. hydrazine
    • C10M2215/182—Azo compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)

Abstract

Monoazo dyes insoluble in water are made by coupling the diazo compound of o-nitraniline or a substitution product thereof with an alkyl ester of 2 : 3-oxynaphthoic acid. They are suitable for dyeing or colouring nitrocellulose lacquers and acetyl cellulose lacquers, varnish lacquers, transparent metal lacquers, glass colours (i.e. lacquers suitable for application to glass), coatings on films, wood, leather, metal, paper, glass or for colouring artificial masses, candles, fats and lubricating oils. Fast pure yellow-red to blue-red shades are obtained. In examples, dyes from the following components are described: 1-amino-4-ethoxy-2-nitrobenzene, 1 - amino - 2 : 4 - dinitrobenzene, 1 - amino - 4 - methyl - 2 - nitrobenzene, o-nitraniline, 1 - amino - 2 - nitrobenzene - 4 - carboxylic acid ethylester; the ethyl and isoamyl esters of 2 : 3-oxynaphthoic acid. For the coupling the 2 : 3-oxynaphthoic ester is dissolved in alcohol, with or without sodium acetate and glacial acetic acid.ALSO:Candles, fats, and lubricating-oils are coloured by means of the azo dyes obtained by coupling a diazotized o-nitroaniline with an alkylester of 2 : 3-oxynaphthoic acid.
GB33311/33A 1932-11-28 1933-11-28 Manufacture of monoazo dyestuffs insoluble in water Expired GB424365A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE424365X 1932-11-28

Publications (1)

Publication Number Publication Date
GB424365A true GB424365A (en) 1935-02-20

Family

ID=6476238

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33311/33A Expired GB424365A (en) 1932-11-28 1933-11-28 Manufacture of monoazo dyestuffs insoluble in water

Country Status (1)

Country Link
GB (1) GB424365A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2750378A (en) * 1951-06-30 1956-06-12 Hoechst Ag Mono-azo-dyestuffs insoluble in water

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2750378A (en) * 1951-06-30 1956-06-12 Hoechst Ag Mono-azo-dyestuffs insoluble in water

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