GB623763A - Process for the production of monazo dyes containing 6-ethyl and 6-propyl pyronone couplers - Google Patents

Process for the production of monazo dyes containing 6-ethyl and 6-propyl pyronone couplers

Info

Publication number
GB623763A
GB623763A GB31828/46A GB3182846A GB623763A GB 623763 A GB623763 A GB 623763A GB 31828/46 A GB31828/46 A GB 31828/46A GB 3182846 A GB3182846 A GB 3182846A GB 623763 A GB623763 A GB 623763A
Authority
GB
United Kingdom
Prior art keywords
ethyl
pyronone
propyl
nitro
amino
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
GB31828/46A
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.)
GAF Chemicals Corp
Original Assignee
General Aniline and Film Corp
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 General Aniline and Film Corp filed Critical General Aniline and Film Corp
Publication of GB623763A publication Critical patent/GB623763A/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
    • C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
    • C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds

Landscapes

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

Abstract

6-Ethyl- and 6-n-propyl-pyronone are prepared by heating dehydrapropionylacetic acid and dehydrabutyrylacetic acid respectively in 90 per cent sulphuric acid at 130-135 DEG C. Specification 419,447 is referred to.ALSO:Monoazo dyes are manufactured by coupling a diazo compound free from sulphonic acid groups with 6-ethyl- or 6-n-propyl-pyronone. The products are suitable for application to organic derivatives of cellulose, particularly textile materials made of or containing an organic derivative of cellulose (e.g. cellulose acetate) by dyeing, printing or stencilling, or they may be formed on the fibre by treating it with a diazotizable amine, diazotizing and developing. The diazo components may be of the benzene, naphthalene, anthracene, diphenyl and carbazole series, but are preferably aminobenzenes containing one or more halogen, nitro, alkoxy, acetyl, carbalkoxy or aldehyde substituents. Examples describe the use of m-and p-chloraniline, ethyl o- and paminobenzoate, p-aminoacetophenone, o-anisidine and o-nitraniline. Other diazo components specified are: p-nitraniline, p-nitro-o-anisidine, m-nitro-p-toluidine, a -naphthylamine, 1-aminoanthraquinone, 1-methoxy-2-amino-5-nitrobenzene, 1-methyl-3-amino-6-chlorobenzene, 3-aminocarbazole, p-toluidine and 41-amino-2 : 5-diethoxydiphenyl. Specification 419,447 is referred to. The Specification as open to inspection under Sect. 91 comprises also the use of 41-methoxy-aminodiphenylamine as a diazo component. This subject-matter does not appear in the Specification as accepted.
GB31828/46A 1945-10-27 1946-10-26 Process for the production of monazo dyes containing 6-ethyl and 6-propyl pyronone couplers Expired GB623763A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US623763XA 1945-10-27 1945-10-27

Publications (1)

Publication Number Publication Date
GB623763A true GB623763A (en) 1949-05-23

Family

ID=22042076

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31828/46A Expired GB623763A (en) 1945-10-27 1946-10-26 Process for the production of monazo dyes containing 6-ethyl and 6-propyl pyronone couplers

Country Status (1)

Country Link
GB (1) GB623763A (en)

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