GB1509733A - Process for the manufacture of nitro-amino-azobenzenes - Google Patents

Process for the manufacture of nitro-amino-azobenzenes

Info

Publication number
GB1509733A
GB1509733A GB2756475A GB2756475A GB1509733A GB 1509733 A GB1509733 A GB 1509733A GB 2756475 A GB2756475 A GB 2756475A GB 2756475 A GB2756475 A GB 2756475A GB 1509733 A GB1509733 A GB 1509733A
Authority
GB
United Kingdom
Prior art keywords
nitro
amino
azobenzenes
manufacture
aqueous
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
GB2756475A
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
Ciba 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 Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of GB1509733A publication Critical patent/GB1509733A/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
    • C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
    • C09B31/02—Disazo dyes
    • C09B31/04—Disazo dyes from a coupling component "C" containing a directive amino group
    • 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
    • C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
    • C09B29/08—Amino benzenes
    • 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
    • C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
    • C09B29/08—Amino benzenes
    • C09B29/0805—Amino benzenes free of acid groups
    • C09B29/0807—Amino benzenes free of acid groups characterised by the amino group
    • C09B29/0808—Amino benzenes free of acid groups characterised by the amino group unsubstituted amino group
    • 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
    • C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
    • C09B33/02—Disazo dyes
    • 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
    • C09B43/00—Preparation of azo dyes from other azo compounds
    • C09B43/44—Preparation of azo dyes from other azo compounds by substituting amine groups for hydroxyl groups or hydroxyl groups for amine groups; Desacylation of amino-acyl groups; Deaminating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1509733 Preparation of nitro-amino-azobenzenes CIBA-GEIGY AG 30 June 1975 [1 July 1974] 27564/75 Heading C4P A 3-nitro-2 or 4-amino-azobenzene is prepared by replacing OR by NH 2 in a compound of the formula wherein R is C 1-8 alkyl, OR is ortho to NO 2 , the benzene ring B may be further substituted and A is a benzene ring which may be further substituted, by heating with NH 3 at temperatures above 80‹C. in an aqueous, organic-aqueous or organic medium.
GB2756475A 1974-07-01 1975-06-30 Process for the manufacture of nitro-amino-azobenzenes Expired GB1509733A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH902374A CH591543A5 (en) 1974-07-01 1974-07-01

Publications (1)

Publication Number Publication Date
GB1509733A true GB1509733A (en) 1978-05-04

Family

ID=4347481

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2756475A Expired GB1509733A (en) 1974-07-01 1975-06-30 Process for the manufacture of nitro-amino-azobenzenes

Country Status (4)

Country Link
JP (1) JPS5116623A (en)
CH (1) CH591543A5 (en)
DE (1) DE2528866A1 (en)
GB (1) GB1509733A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0446356Y2 (en) * 1985-09-25 1992-10-30
DE3609342A1 (en) * 1986-03-20 1987-09-24 Bayer Ag METHOD FOR PRODUCING AZO COMPOUNDS
JPH0329871Y2 (en) * 1988-04-23 1991-06-25

Also Published As

Publication number Publication date
JPS5116623A (en) 1976-02-10
CH591543A5 (en) 1977-09-30
DE2528866A1 (en) 1976-01-22

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Legal Events

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