GB272024A - New pyrazolone dyestuffs from amino derivatives of 3-carboxy-4-hydroxy-diphenyl sulphide - Google Patents

New pyrazolone dyestuffs from amino derivatives of 3-carboxy-4-hydroxy-diphenyl sulphide

Info

Publication number
GB272024A
GB272024A GB1226026A GB1226026A GB272024A GB 272024 A GB272024 A GB 272024A GB 1226026 A GB1226026 A GB 1226026A GB 1226026 A GB1226026 A GB 1226026A GB 272024 A GB272024 A GB 272024A
Authority
GB
United Kingdom
Prior art keywords
acid
carboxy
pyrazolones
sulphide
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
GB1226026A
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.)
Imperial Chemical Industries Ltd
Original Assignee
British Dyestuffs Corp Ltd
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 British Dyestuffs Corp Ltd filed Critical British Dyestuffs Corp Ltd
Priority to GB1226026A priority Critical patent/GB272024A/en
Publication of GB272024A publication Critical patent/GB272024A/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
    • C09B29/3604—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
    • C09B29/3647—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms
    • C09B29/3652—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles
    • C09B29/366—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles containing hydroxy-1,2-diazoles, e.g. pyrazolone

Landscapes

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

Abstract

272,024. British Dyestuffs Corporation, Ltd., and Mendoza, M. May 12, 1926. Pyrazolones.-The hydrazines obtained by reducing the diazo compounds of the amino derivatives of 3-carboxy-4-oxydiphenyl sulphide described in Specification 260,058 are condensed with esters of #-ketonic acids to yield pyrazolones. In examples, the hydrazine from 2<1>- amino-3-carboxy-4-oxy-4<1>-sulphodiphenyl sulphide is condensed with acetoacetic ester and oxalacetic ester to yield the corresponding 3-methyl- and 3- carboxy-pyrazolones. Azo dyes which dye wool in greenish-yellow to reddish-orange shades little changed by afterchroming are obtained by coupling the above pyrazolones with diazo compounds: the products may also be used for chrome-printing on cotton. In examples, (1) the 3-methylpyrazolone from 2<1>- amino-3-carboxy-4-oxy-4<1>-sulphodiphenyl sulphide is coupled with diazotized sulphanilic acid, 2: 5- dichlorsulphanilic acid, naphthionic acid, aminoazobenzene, and benzene-azo-1-naphthylamine=6 (or 7) -sulphonic acid, and with tetrazotized benzidine, and (2) the corresponding carboxypyrazoline is coupled with diazotized sulphanilic acid, 2 : 5-dichlorsulphanilic acid and naphthionic acid.
GB1226026A 1926-05-12 1926-05-12 New pyrazolone dyestuffs from amino derivatives of 3-carboxy-4-hydroxy-diphenyl sulphide Expired GB272024A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1226026A GB272024A (en) 1926-05-12 1926-05-12 New pyrazolone dyestuffs from amino derivatives of 3-carboxy-4-hydroxy-diphenyl sulphide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1226026A GB272024A (en) 1926-05-12 1926-05-12 New pyrazolone dyestuffs from amino derivatives of 3-carboxy-4-hydroxy-diphenyl sulphide

Publications (1)

Publication Number Publication Date
GB272024A true GB272024A (en) 1927-06-09

Family

ID=10001286

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1226026A Expired GB272024A (en) 1926-05-12 1926-05-12 New pyrazolone dyestuffs from amino derivatives of 3-carboxy-4-hydroxy-diphenyl sulphide

Country Status (1)

Country Link
GB (1) GB272024A (en)

Similar Documents

Publication Publication Date Title
GB272024A (en) New pyrazolone dyestuffs from amino derivatives of 3-carboxy-4-hydroxy-diphenyl sulphide
US1947945A (en) Azo dyes
GB414684A (en) Process for the manufacture of azodyestuffs and intermediate products therefor
GB587259A (en) Manufacture of azo pigments
US2343234A (en) Azo dye of the pyrazolone type
GB345930A (en) Improvements in the manufacture and production of azo dyestuffs
US1821759A (en) Manufacture of azo dyestuffs
GB440207A (en) Manufacture of azo-dyestuffs insoluble in water
GB520101A (en) Manufacture of acid mono-azo dyestuffs
GB418381A (en) Azo dyes
GB443778A (en) Process for the manufacture of azodyestuffs
GB245765A (en) The manufacture of new azo-dyestuffs
GB806668A (en) Chromed pyrazolone monoazo dyes
GB268807A (en) Manufacture of azo-dyestuffs
GB172056A (en) Manufacture of easily soluble, diazotisable azo-dyestuffs
GB253763A (en) Manufacture of monoazo-dyestuffs or intermediate compounds, for the manufacture of dis-azo- or polyazo-dyestuffs
GB700701A (en) Metallized dyes for cotton
GB205503A (en) Manufacture of mono-azo-dyestuffs
GB243758A (en) Manufacture of azo-dyestuffs and process of dyeing wool, therewith
GB300425A (en) Improvements in the manufacture and production of dyestuffs containing chromium
GB190313A (en) Improvements in dyeing cellulose acetates
GB612174A (en) Manufacture of polyazo dyestuffs
GB338672A (en) Manufacture of azo-dyestuffs
GB198829A (en) Manufacture of a new derivative of pyrazolone and of new dyestuffs therefrom
GB290230A (en) Manufacture of yellow monoazo-dyestuffs