GB339283A - Process for the manufacture of azine derivatives - Google Patents

Process for the manufacture of azine derivatives

Info

Publication number
GB339283A
GB339283A GB2647929A GB2647929A GB339283A GB 339283 A GB339283 A GB 339283A GB 2647929 A GB2647929 A GB 2647929A GB 2647929 A GB2647929 A GB 2647929A GB 339283 A GB339283 A GB 339283A
Authority
GB
United Kingdom
Prior art keywords
naphthylamine
derivatives
oxidation
sulphonic
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
GB2647929A
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
Priority to GB2647929A priority Critical patent/GB339283A/en
Publication of GB339283A publication Critical patent/GB339283A/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
    • C09B17/00—Azine dyes
    • C09B17/04—Azine dyes of the naphthalene series

Landscapes

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

Abstract

339,283. Carpmael, A., (I, G. Farbenindustrie Akt.-Ges.). Aug. 30, 1929. 1 : 2 : 5 :6-Dibenzophenazine and its derivatives are made from 2-naphthylamine or its corresponding derivatives which contain a free 1-position by oxidation in a high boiling inert solvent with a metallic oxide, particularly cupric oxide. The products' from 2-naphthylamine and its 6-methyl, 6-bromo, 7-methoxy, 8-methoxy, 7-acetyl-amino, and 8-sulphonanilide derivatives on oxidation with cupric oxide are specified. The sulphonic acid derivatives are also made by the oxidation of the corresponding 2-naphthylamine sulphonic acid in aqueous solution with a metallic oxide. The products from the oxidation by means of manganese dioxide of the 7-sulphonic, 8-sulphonic, 5 : 7-disulphonic, 6 : 8-disulphonic, 3:6: 8-trisulphonic acid derivatives of 2-naphthylamine are specified. 6-Methyl-2-naphthylamine is obtained by treating 6-methyl-2-naphthol with ammonia under pressure. 2-Amino-8-naphtholmethylether and 2-amino-7- naphtholmethylether are obtained by alkylating the corresponding acetylaminonaphthols and the subsequent saponification of the acetyl group. Monoacetyl-2 : 7-diaminonaphthalene is obtained by monoacetylating 2 : 7-diamino-naphthalene. 2-Naphthylamine-6-sulphonanilide is obtained by acetylating 2-naphthylamine-6-sulphonic acid, treating the resulting product with phosphorus pentachloride and then with aniline. The acetyl group is then saponified off.
GB2647929A 1929-08-30 1929-08-30 Process for the manufacture of azine derivatives Expired GB339283A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2647929A GB339283A (en) 1929-08-30 1929-08-30 Process for the manufacture of azine derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2647929A GB339283A (en) 1929-08-30 1929-08-30 Process for the manufacture of azine derivatives

Publications (1)

Publication Number Publication Date
GB339283A true GB339283A (en) 1930-12-01

Family

ID=10244280

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2647929A Expired GB339283A (en) 1929-08-30 1929-08-30 Process for the manufacture of azine derivatives

Country Status (1)

Country Link
GB (1) GB339283A (en)

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