DE365902C - Process for the representation of dyes - Google Patents

Process for the representation of dyes

Info

Publication number
DE365902C
DE365902C DEA33151D DEA0033151D DE365902C DE 365902 C DE365902 C DE 365902C DE A33151 D DEA33151 D DE A33151D DE A0033151 D DEA0033151 D DE A0033151D DE 365902 C DE365902 C DE 365902C
Authority
DE
Germany
Prior art keywords
naphthoquinone
dichloro
dyes
representation
condensation
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
DEA33151D
Other languages
German (de)
Inventor
Dr Wilhelm Herzberg
Dr Gerhard Hoppe
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.)
Agfa Gevaert NV
Original Assignee
Aktiengesellschaft fuer Anilinfabrikation GmbH
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 Aktiengesellschaft fuer Anilinfabrikation GmbH filed Critical Aktiengesellschaft fuer Anilinfabrikation GmbH
Priority to DEA33151D priority Critical patent/DE365902C/en
Priority to DEA33249D priority patent/DE368168C/en
Priority to DEA33588D priority patent/DE368170C/en
Priority to DEA33587D priority patent/DE368169C/en
Priority to DEA34423D priority patent/DE368171C/en
Application granted granted Critical
Publication of DE365902C publication Critical patent/DE365902C/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

Landscapes

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

Description

Verfahren zur Darstellung von Farbstoffen. Es wurde gefunden, daß als Pigmente wie als Küpenfarbstoffe von hervorragenden Echtheitseigenschaften benutzbare Verbindungen erhalten werden, wenn man die aus 2 - 3-Dichlor-i - 4-naphthochinon durch Kondensation mit o-Diaminen erhältlichen Eurhodole (vgl. Z i n c k e , Annalen 286, 56) mit 2 # 3-Dichlori - 4-naphthochinon bei Gegenwart von Metallen und salzsäurebindenden Mitteln erhitzt. B eispiel. 27 Teile Eurhodol aus 2 - 3-Dichlor-i - 4-naphthochinon und i-2-Diaminobenzol werden mit 23 Teilen 2- 3-Dichlor-i -4-naphthochinon, iSTeilen wasserfreiem Natriumacetat, i2Teilen Kupferbronze und 8oo Teilen Äthylbenzol einige Stunden gekocht. Darauf wird das Lösungsmittel mit Dampf abgeblasen und das Reaktionsprodukt mit verdünnter Natronlauge ausgekocht. Der gelbliche Rückstand wird durch Umlösen aus alkalischer Hvdrosulfit-Lösung von Kupfer befreit. Der so erhaltene Farbstoff bildet ein hellgelbes Pulver und nach dem Umkristallisieren aus Nitrobenzol gelbe Nadeln vom Schmelzpunkt 325°.Process for the representation of dyes. It was found that useful as pigments as well as vat dyes with excellent fastness properties Compounds are obtained when one of the 2 - 3-dichloro-i - 4-naphthoquinone Eurhodols obtainable by condensation with o-diamines (cf. Zi n c k e, Annalen 286, 56) with 2 # 3-dichloro - 4-naphthoquinone in the presence of metals and hydrochloric acid binding agents Means heated. Example. 27 parts of Eurhodol from 2 - 3-dichloro-i - 4-naphthoquinone and i-2-diaminobenzene are divided with 23 parts of 2- 3-dichloro-i -4-naphthoquinone anhydrous sodium acetate, i2 parts copper bronze and 800 parts ethylbenzene some Cooked for hours. The solvent is then blown off with steam and the reaction product boiled with dilute sodium hydroxide solution. The yellowish residue is dissolved by dissolving freed from copper from alkaline hydrogen sulfite solution. The dye thus obtained forms a light yellow powder and, after recrystallization from nitrobenzene, yellow Needles with a melting point of 325 °.

In ähnlicher Weise verläuft die Reaktion bei der Kondensation analoger Verbindungen. So erhält man z. B. durch Kondensation von 2 - 3-Dichlor-i - 4-naphthochinon mit dem Eurhod o1 aus 2 - 3-Dichlor-i - q:-rnaphthochinon und i - 2-Diaminonaphthalin einen orangegelben Farbstoff.In a similar way, the reaction in the condensation proceeds more analogously Links. So you get z. B. by condensation of 2 - 3-dichloro-i - 4-naphthoquinone with the Eurhod o1 from 2 - 3-dichloro-i - q: -naphthoquinone and i - 2-diaminonaphthalene an orange-yellow dye.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung von Farbstoffen, darin bestehend, daß man die durch Kondensation von 2 - 3-Dichlor-i - 4-naphthochinon mit o-Diaminen erhältlichen Eurhodole mit 2 - 3-Dichlor-i - 4-naphthochinon bei Gegenwart von Metallen und salzsäurebindenden Mitteln erhitzt.PATENT CLAIM: Process for the representation of dyes, consisting therein that the by condensation of 2 - 3-dichloro-i - 4-naphthoquinone with o-diamines available Eurhodole with 2 - 3-dichloro-i - 4-naphthoquinone in the presence of metals and hydrochloric acid binding agents.
DEA33151D 1920-03-08 1920-03-08 Process for the representation of dyes Expired DE365902C (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DEA33151D DE365902C (en) 1920-03-08 1920-03-08 Process for the representation of dyes
DEA33249D DE368168C (en) 1920-03-08 1920-04-07 Process for the representation of dyes
DEA33588D DE368170C (en) 1920-03-08 1920-06-15 Process for the representation of dyes
DEA33587D DE368169C (en) 1920-03-08 1920-06-15 Process for the representation of dyes
DEA34423D DE368171C (en) 1920-03-08 1920-11-25 Process for the representation of dyes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA33151D DE365902C (en) 1920-03-08 1920-03-08 Process for the representation of dyes

Publications (1)

Publication Number Publication Date
DE365902C true DE365902C (en) 1922-12-23

Family

ID=6928037

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA33151D Expired DE365902C (en) 1920-03-08 1920-03-08 Process for the representation of dyes

Country Status (1)

Country Link
DE (1) DE365902C (en)

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