AT116041B - Process for the preparation of monoazo dyes. - Google Patents

Process for the preparation of monoazo dyes.

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Publication number
AT116041B
AT116041B AT116041DA AT116041B AT 116041 B AT116041 B AT 116041B AT 116041D A AT116041D A AT 116041DA AT 116041 B AT116041 B AT 116041B
Authority
AT
Austria
Prior art keywords
amino
methylbenzene
dichloro
preparation
monoazo dyes
Prior art date
Application number
Other languages
German (de)
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.)
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Publication date
Application filed by Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Application granted granted Critical
Publication of AT116041B publication Critical patent/AT116041B/en

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Description

  

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  Verfahren zur Darstellung von Monoazofarbstoffen. 
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PATENT-ANSPRÜCHE :
1. Verfahren zur Darstellung von Monoazofarbstoffen, gegebenenfalls auf der Faser, darin bestehend, dass man die Diazoverbindungen von Dichlordervaten des p-Toluidins, die gleichzeitig in   0- und 1n-   Stellung zur Methylgruppe halogeniert sind, wie 2,   3- oder   2, 5-Diehlor-4-amino-l-methylbenzol, mit Azofarbstoffkomponenten vereinigt, die Verwandtschaft zur Pflanzenfaser besitzen, wie die Arylamide der 2, 3-Oxynaphtoesäure.



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  Process for the preparation of monoazo dyes.
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PATENT CLAIMS:
1. A process for the preparation of monoazo dyes, optionally on the fiber, consisting in that the diazo compounds of dichloro derivatives of p-toluidine, which are halogenated at the same time in the 0- and 1n-position to the methyl group, such as 2,3 or 2,5 -Diehlor-4-amino-1-methylbenzene, combined with azo dye components that are related to plant fibers, such as the aryl amides of 2,3-oxynaphthoic acid.

Claims (1)

2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass man die Diazoverbindungen von 2, 3-Dichlor-4-amino-1-methylbenzol oder 2r5-DicN or-4-amino-l-methylbenLZDl wie. auch des Gemisches von 2, 3-DichJor-4-amino-1-methylbenzol und 2, 5-Dichlor-4-amino-1-methylbenzol mit den Kondensationsprodukten von 5-bzw. 4-Chlor-2-amino-l-methoxybenzol und der 2, 3-0xynaphtoesäure kuppelt. 2. The method according to claim 1, characterized in that the diazo compounds of 2, 3-dichloro-4-amino-1-methylbenzene or 2r5-DicN or-4-amino-l-methylbenLZDl as. also the mixture of 2, 3-dichloro-4-amino-1-methylbenzene and 2, 5-dichloro-4-amino-1-methylbenzene with the condensation products of 5- or. 4-chloro-2-amino-l-methoxybenzene and the 2,3-0xynaphthoic acid couple. 3. Abänderung der Verfahren nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, dass man hier die Diazoverbindungen solcher Dihalogen-4-amino-1-methylbenzole, die gleichzeitig. in 0- und'm- Stellung zur Methylgruppe halogeniert sind, aber mindestens ein vom Chlor verschiedenes Halogenatom enthalten, mit den Arylamiden der 2,. 3-Oxynaphtoesäure kuppelt. 3. Modification of the process according to Claims 1 and 2, characterized in that the diazo compounds of such dihalogeno-4-amino-1-methylbenzenes are used simultaneously. are halogenated in 0- und'm- position to the methyl group, but contain at least one halogen atom different from chlorine, with the arylamides of 2 ,. 3-oxynaphtoic acid couples.
AT116041D 1927-03-29 1928-03-13 Process for the preparation of monoazo dyes. AT116041B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE116041X 1927-03-29
DE116041T 1928-01-26

Publications (1)

Publication Number Publication Date
AT116041B true AT116041B (en) 1930-01-25

Family

ID=29403289

Family Applications (1)

Application Number Title Priority Date Filing Date
AT116041D AT116041B (en) 1927-03-29 1928-03-13 Process for the preparation of monoazo dyes.

Country Status (1)

Country Link
AT (1) AT116041B (en)

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