GB1449399A - Azo dyestuffs - Google Patents

Azo dyestuffs

Info

Publication number
GB1449399A
GB1449399A GB5514374A GB5514374A GB1449399A GB 1449399 A GB1449399 A GB 1449399A GB 5514374 A GB5514374 A GB 5514374A GB 5514374 A GB5514374 A GB 5514374A GB 1449399 A GB1449399 A GB 1449399A
Authority
GB
United Kingdom
Prior art keywords
dyes
cucn
dec
prepared
azo dyestuffs
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
GB5514374A
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of GB1449399A publication Critical patent/GB1449399A/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
    • C09B29/06Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
    • C09B29/08Amino benzenes
    • C09B29/0805Amino benzenes free of acid groups
    • C09B29/0807Amino benzenes free of acid groups characterised by the amino group
    • C09B29/0809Amino benzenes free of acid groups characterised by the amino group substituted amino group
    • C09B29/081Amino benzenes free of acid groups characterised by the amino group substituted amino group unsubstituted alkylamino, alkenylamino, alkynylamino, cycloalkylamino, aralkylamino or arylamino
    • 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
    • C09B29/06Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
    • C09B29/08Amino benzenes
    • 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
    • C09B43/00Preparation of azo dyes from other azo compounds
    • C09B43/40Preparation of azo dyes from other azo compounds by substituting hetero atoms by radicals containing other hetero atoms
    • C09B43/42Preparation of azo dyes from other azo compounds by substituting hetero atoms by radicals containing other hetero atoms by substituting radicals containing hetero atoms for —CN radicals

Landscapes

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

Abstract

1449399 Monoazo dyes BAYER AG 20 Dec 1974 [21 Dec 1973] 55143/74 Heading C4P Novel monoazo dyes of formula (where R 1 to R 3 are independently C 1-4 alkyl) are prepared by diazotizing 2-amino-3,5-dinitrobenzonitrile and coupling with the appropriate amine. Alternatively the dyes may be prepared from the corresponding 2-bromo or 2-chloro-4,6- dinitro compounds by replacing the halogen with CN; the reaction is preferably carried out using CuCN or a CuCN-forming compound in an organic solvent, preferably aprotic, at 50-150‹ C. The dyes are used for colouring synthetic fibre materials, particularly polyesters and cellulose triacetate, in blue shades.
GB5514374A 1973-12-21 1974-12-20 Azo dyestuffs Expired GB1449399A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732363676 DE2363676A1 (en) 1973-12-21 1973-12-21 AZO DYES

Publications (1)

Publication Number Publication Date
GB1449399A true GB1449399A (en) 1976-09-15

Family

ID=5901460

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5514374A Expired GB1449399A (en) 1973-12-21 1974-12-20 Azo dyestuffs

Country Status (8)

Country Link
JP (1) JPS5096624A (en)
BE (1) BE823672A (en)
CH (1) CH583767A5 (en)
DE (1) DE2363676A1 (en)
FR (1) FR2255353B3 (en)
GB (1) GB1449399A (en)
IT (1) IT1027849B (en)
NL (1) NL7416004A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4257944A (en) * 1978-04-05 1981-03-24 Imperial Chemical Industries Limited Process for the manufacture of cyano azo dyes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4257944A (en) * 1978-04-05 1981-03-24 Imperial Chemical Industries Limited Process for the manufacture of cyano azo dyes

Also Published As

Publication number Publication date
FR2255353A1 (en) 1975-07-18
NL7416004A (en) 1975-06-24
FR2255353B3 (en) 1977-09-23
IT1027849B (en) 1978-12-20
DE2363676A1 (en) 1975-07-03
BE823672A (en) 1975-06-20
CH583767A5 (en) 1977-01-14
JPS5096624A (en) 1975-07-31

Similar Documents

Publication Publication Date Title
GB1379233A (en) Disperse monoazo dyestuffs
GB1516717A (en) Disperse azo dyes
GB1387728A (en) Production of azo dyes containing cyano groups
GB1492502A (en) Process for the preparation of azo dyestuffs
GB1449399A (en) Azo dyestuffs
GB1535334A (en) Disperse monoazo dyestuffs
GB1457146A (en) Monoazo dyestuffs
GB1462178A (en) Monoazo disperse dyestuffs
GB1469453A (en) Monoazo dyes containing a sulphato-ethyl group
GB1445071A (en) Azo dyestuffs
GB1479644A (en) Disperse monoazo dyestuffs
GB1518290A (en) Disperse nitro monoazo dyestuffs
GB1467921A (en) Monoazo dyestuffs containing hydroxy-pyridone residues
GB1465941A (en) Monoazo dyestuffs derived from 2-amino-3-carboxy-5-nitro- thiophene
GB1458369A (en) Disperse monoazo dyestuffs
GB1518197A (en) Disperse monoazo dyestuffs
GB1479469A (en) Disperse monoazo dyestuffs
GB1460482A (en) Dispersed disazo dyestuffs derived from 1-phenyl-5-pyrazolone- -3-acetic acid
GB1438586A (en) Modifications of a disperse monoazo dye which are stable under dyeing conditions
GB966803A (en) Reactive metallised monoazo dyestuffs
GB1409254A (en) Water-insoluble monoazo dyestuffs
GB1423648A (en) Nitrodiphenylamine azo dyes
GB1441522A (en) Monoazo dyestuffs derived from 4-amino-2-nitro-diphenylamines
JPS5534255A (en) Monoazo dye for synthetic fiber
GB1434462A (en) Disazo dyestuffs

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee