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GB457535A - Manufacture of 4-amino-6-methyl-3:4-dinitrodiphenylamine - Google Patents

Manufacture of 4-amino-6-methyl-3:4-dinitrodiphenylamine

Info

Publication number
GB457535A
GB457535A GB16180/35A GB1618035A GB457535A GB 457535 A GB457535 A GB 457535A GB 16180/35 A GB16180/35 A GB 16180/35A GB 1618035 A GB1618035 A GB 1618035A GB 457535 A GB457535 A GB 457535A
Authority
GB
United Kingdom
Prior art keywords
dinitrodiphenylamine
amino
methyl
manufacture
sulphonic acid
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
GB16180/35A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB457535A publication Critical patent/GB457535A/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
    • C09B29/18—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides
    • C09B29/20—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides of the naphthalene series

Landscapes

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

Abstract

4 - Amino - 6 - methyl - 3 : 4<1> - dinitrodiphenylamine is made by condensing 4-nitro-1-chlorobenzene-2-sulphonic acid with 1 : 4-diamino-3-nitro-6-methylbenzene and splitting off the sulphonic group from the 4-amino-6-methyl-3 : 4<1>-dinitrodiphenylamine - 2<1> - sulphonic acid thus obtained. It is an azo dye intermediate. In the example, the condensation is effected under pressure in presence of water and calcium carbonate and the sulphonic acid group is split off by heating with sulphuric acid. Specification 457,534 is referred to.
GB16180/35A 1934-06-02 1935-06-04 Manufacture of 4-amino-6-methyl-3:4-dinitrodiphenylamine Expired GB457535A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE457534X 1934-06-02

Publications (1)

Publication Number Publication Date
GB457535A true GB457535A (en) 1936-11-30

Family

ID=6539324

Family Applications (2)

Application Number Title Priority Date Filing Date
GB16180/35A Expired GB457535A (en) 1934-06-02 1935-06-04 Manufacture of 4-amino-6-methyl-3:4-dinitrodiphenylamine
GB16178/35A Expired GB457534A (en) 1934-06-02 1935-06-04 Manufacture of 4-amino-3:4-dinitro-diphenylamine and of azo-dyestuffs therefrom

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB16178/35A Expired GB457534A (en) 1934-06-02 1935-06-04 Manufacture of 4-amino-3:4-dinitro-diphenylamine and of azo-dyestuffs therefrom

Country Status (3)

Country Link
FR (1) FR790859A (en)
GB (2) GB457535A (en)
NL (1) NL40149C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3054792A (en) * 1956-06-15 1962-09-18 Ici Ltd New triazino nitro dyestuffs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3054792A (en) * 1956-06-15 1962-09-18 Ici Ltd New triazino nitro dyestuffs

Also Published As

Publication number Publication date
GB457534A (en) 1936-11-30
FR790859A (en) 1935-11-28
NL40149C (en)

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