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DE351001C - Process for the preparation of o-oxymonoazo dyes - Google Patents

Process for the preparation of o-oxymonoazo dyes

Info

Publication number
DE351001C
DE351001C DE1920351001D DE351001DD DE351001C DE 351001 C DE351001 C DE 351001C DE 1920351001 D DE1920351001 D DE 1920351001D DE 351001D D DE351001D D DE 351001DD DE 351001 C DE351001 C DE 351001C
Authority
DE
Germany
Prior art keywords
dyes
preparation
oxymonoazo
acidylamino
diazotized
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
DE1920351001D
Other languages
German (de)
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
Application granted granted Critical
Publication of DE351001C publication Critical patent/DE351001C/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
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/14—Monoazo compounds
    • C09B45/16—Monoazo compounds containing chromium

Landscapes

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

Description

Verfahren zur Darstellung von o-Oxymonoazofarbstoffen. Durch das Patent 291499 ist ein Verfahren zur Darstellung von o-Oxvmonoazofarbstoff en geschützt, das darin -besteht, daß man diazotierte Pikraminsäure mit 4-Acidylai-ninoi-oxvbenzolen oder deren Substitutiotisprodukten kuppelt.Process for the preparation of o-oxymonoazo dyes. Through the patent 291499 a process for the preparation of o-oxymonoazo dyes is protected, that consists in that one diazotized picric acid with 4-Acidylai-ninoi-oxvbenzenes or their substitute products.

Es wurde nun gefunden, daß man zu gleich wertvollen Farbstoffen gelangt, wenn man in dem Verfahren des Hauptpatentes die 4-Acidylanlino-i-(:)xybenzole durch solche Derivate des 2- oder 3-Acidviarnino-i-oxvbenzols ersetzt, die in 4-Stellung substituiert sind. Die mit den neuen Farbstoffen unter Zuhilfenahme einer Chrombeize hergestellten Färbungen weisen die gleichen vorzüglichen Echtheitseigenschaften auf wie die Farbstoffe nach dem Verfahren des Hauptpatentes; sie haben aber vor diesen die wesentlich gelberen Töne voraus. B e i s p i e 1. It has now been found that dyes of equal value are obtained if, in the process of the main patent, the 4-acidylanlino-i - (:) xybenzenes are replaced by those derivatives of 2- or 3-acidviarnino-i-oxvbenzene, which are described in 4 Position are substituted. The dyeings produced with the new dyes with the aid of a chrome stain have the same excellent fastness properties as the dyes according to the process of the main patent; but they have the much more yellow tones ahead of them. B ice p e. 1

ig,9 Teile Pikraminsäure werden wie üb- lich diazotiert und mit einer sodaalkaliscben Lösung von 16,5 Teilen i-Methyl-3-acetylamino-4-oxybenzol vereinigt. Der fertig 0 #ebildete Farbstoff wird ausgesalzen und abg -preßt. Er färbt Wolle mit Chrombeize im Einbadverfahren olivbraun.9 parts of picric acid are diazotized as usual and combined with a soda-alkaline solution of 16.5 parts of i-methyl-3-acetylamino-4-oxybenzene. The completed 0 #ebildete dye is salted and abg -preßt. He dyes wool olive-brown with a chrome stain in a single bath.

Claims (1)

PATENT-ANspizucH: Abänderung des durch Patent 29r499 geschützten Verfahrens zur Darstellung von o-Oxyrnonoazofarbstoffen, darin bestehend, daß man diazotierte Pikraminsäure statt mit 4-Acidylarniiio-i-oxvbenzolen oder deren Substitutionsprodukten mit solchen Derivaten des 2- oder 3-Acidylamino-i-oxybenzols, die in 4#Stellung substituiert sind, kuppelt.PATENT REQUEST: Modification of the process protected by patent 29r499 for the preparation of o-oxyrenonoazo dyes, consisting in that one diazotized Picramic acid instead of 4-acidylamino-i-oxvbenzenes or their substitution products with those derivatives of 2- or 3-acidylamino-i-oxybenzene which are in the 4 # position are substituted, couples.
DE1920351001D 1920-02-07 1920-02-07 Process for the preparation of o-oxymonoazo dyes Expired DE351001C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE351001T 1920-02-07

Publications (1)

Publication Number Publication Date
DE351001C true DE351001C (en) 1922-03-27

Family

ID=6265766

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1920351001D Expired DE351001C (en) 1920-02-07 1920-02-07 Process for the preparation of o-oxymonoazo dyes

Country Status (1)

Country Link
DE (1) DE351001C (en)

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