DE307163C - - Google Patents

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Publication number
DE307163C
DE307163C DENDAT307163D DE307163DA DE307163C DE 307163 C DE307163 C DE 307163C DE NDAT307163 D DENDAT307163 D DE NDAT307163D DE 307163D A DE307163D A DE 307163DA DE 307163 C DE307163 C DE 307163C
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DE
Germany
Prior art keywords
oxydiazobenzene
oxynaphthalene
derivatives
sulfonic acid
parts
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.)
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Application number
DENDAT307163D
Other languages
German (de)
Publication of DE307163C publication Critical patent/DE307163C/de
Active legal-status Critical Current

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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
    • C09B45/00Complex metal compounds of azo dyes
    • C09B45/02Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/14Monoazo compounds
    • C09B45/16Monoazo compounds containing chromium

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

Description

In dem Patent 307162 wurde ein Verfahren zur Herstellung von o-Oxyazofarbstoffen beschrieben, darin bestehend, daß man HaIogenderivate des 2-Oxydiazobenzols mit einer 8-Halogen-i-oxynaphthalin-5-sulfosäure kuppelt. In the patent 307162 a method for the preparation of o-oxyazo dyes, consisting in that one Halogenderivate of 2-oxydiazobenzene is coupled with an 8-halo-i-oxynaphthalene-5-sulfonic acid.

Es wurde nun gefunden, daß man zu einer neuen Reihe wertvoller Farbstoffe für das Echtfärben der Wolle gelangt, wenn man im ίο Verfahren des. Hauptpatents die Halogenderivate des 2-Oxydiazobenzols durch Nitro- oder Nitrohalogenderivate des 2-Oxydiazobenzols ersetzt.It has now been found that a new series of valuable dyes for the Real dyeing of the wool is achieved if the halogen derivatives are used in the ίο process of the main patent of 2-oxydiazobenzene by nitro or nitrohalogen derivatives of 2-oxydiazobenzene replaced.

Beispiel 1.Example 1.

15,4 Teile 4-Nitro-2-aminophenol werden in der üblichen Weise in Gegenwart von Salzsäure mit Natriumnitrit diazotiert. Die Diazoverbindung vereinigt man mit einer durch Soda alkalisch gehaltenen Lösung von 26 Teilen S-Chlor-i-oxynaphthalin-S-sulfosäure. Nach beendeter Kuppelung salzt man den Farbstoff aus und arbeitet ihn wie üblich auf. Er färbt Wolle aus saurem Bade bordeauxrot; der Chromlack ist schwarz.15.4 parts of 4-nitro-2-aminophenol are in the usual manner in the presence of Hydrochloric acid diazotized with sodium nitrite. The diazo compound is combined with one solution of 26 parts of S-chloro-i-oxynaphthalene-S-sulfonic acid kept alkaline by soda. After the coupling is complete, the dye is salted out and worked as usual on. He dyes wool from acid baths claret-red; the chrome paint is black.

Beispiel 2.Example 2.

19,9 Teile 4,6-Dinitro-2-aminophenol werden in die Diazoverbindung übergeführt und diese wird dann mit 26 Teilen 8-Chlor-i-oxynaphthalin-5-sulfosäure in sodaalkalischer Lösung vereinigt. Der Farbstoff färbt Wolle aus saurem Bade bläulich korinth; die in Ge- genwart von Chromat und Ammonsulfat hergestellte Färbung ist gedeckt grün.19.9 parts of 4,6-dinitro-2-aminophenol are converted into the diazo compound and this is then mixed with 26 parts of 8-chloro-i-oxynaphthalene-5-sulfonic acid combined in soda-alkaline solution. The dye dyes wool from acid baths bluish corinthian; those in the present The coloration produced by chromate and ammonium sulphate is opaque green.

Claims (1)

Patent-Anspruch:Patent claim: Abänderung des Verfahrens zur Herstellung von o-Oxyazofarbstoffen nach Patent 307162, darin bestehend, daß man an Stelle von Halogenderivaten des 2-Oxydiazobenzols Nitro- oder Nitrohalogenderivate des 2-Oxydiazobenzols mit einer 8-Halogen-i-oxynaphthalin-S-sulfosäure kuppelt.Modification of the process for the production of o-oxyazo dyes according to Patent 307162, which consists in that instead of halogen derivatives of 2-oxydiazobenzene Nitro or nitrohalogen derivatives of 2-oxydiazobenzene with an 8-halo-i-oxynaphthalene-S-sulfonic acid clutch.
DENDAT307163D Active DE307163C (en)

Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE913458C (en) * 1951-02-06 1954-06-14 Ciba Geigy Process for the production of complex chromium compounds of monoazo dyes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE913458C (en) * 1951-02-06 1954-06-14 Ciba Geigy Process for the production of complex chromium compounds of monoazo dyes

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