DE163141C - - Google Patents

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Publication number
DE163141C
DE163141C DE1904163141D DE163141DA DE163141C DE 163141 C DE163141 C DE 163141C DE 1904163141 D DE1904163141 D DE 1904163141D DE 163141D A DE163141D A DE 163141DA DE 163141 C DE163141 C DE 163141C
Authority
DE
Germany
Prior art keywords
methyl
ketol
molecule
methylindole
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.)
Expired - Lifetime
Application number
DE1904163141D
Other languages
German (de)
Filing date
Publication of DE163141C publication Critical patent/DE163141C/de
Application filed filed Critical
Priority to AT23906D priority Critical patent/AT23906B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/039—Disazo dyes characterised by the tetrazo component
    • C09B35/08—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl

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

Description

PATENTAMT,PATENT OFFICE,

KLASSE 22 a. CLASS 22 a.

Im Hauptpatent 160674 wurde ein Verfahren zur Darstellung von walkechten Disazofarbstoffen beschrieben, welches darin besteht, daß man die Tetrazoverbindungen der Benzidin- oder Tolidin-m-disulfosäure mit 2 Molekülen Methylketol (a-Methylindol) oder in beliebiger Reihenfolge mit 1 Molekül Methylketol (a-Methylindol) und 1 Molekül i-Phenyl-3-methyl-5-pyrazolon kuppelt.In the main patent 160674, a process for the preparation of walk-fast disazo dyes was found described, which consists in the fact that the tetrazo compounds of benzidine or tolidine-m-disulfonic acid with 2 molecules of methyl ketol (a-methylindole) or in any order with 1 molecule Methyl ketol (a-methylindole) and 1 molecule of i-phenyl-3-methyl-5-pyrazolone couples.

Es wurde nun gefunden, daß, wenn man die genannten Tetrazoverbindungen der Benzidin- bezw. Tolidinsulfosäuren der Formeln :It has now been found that if you use the tetrazo compounds mentioned of the benzidine respectively Tolidinsulfonic acids of the formulas:

JVÄ,-JVÄ, -

bezw.respectively

NH9-'NH 9 - '

>-NH> -NH

SO3HSO 3 H

>-NH,> -NH,

SO3HSO 3 H

SO3HSO 3 H

CHCH

in beliebiger Reihenfolge mit ι Molekül Methylketol (a-Methylindol) und ι Molekül ß-Naphtol kuppelt, man zu orangefarbenen Wollfarbstoffen gelangt, die sich ebenfalls durch die technisch äußerst wichtige Eigenschaft auszeichnen, daß sie bereits in direkter Färbung gegen weiße Wolle und gegen weiße Baumwolle walkecht sind.in any order with ι molecule methyl ketol (a-methylindole) and ι molecule ß-Naphtol couples, one arrives at orange-colored wool dyes, which are also distinguished by the technically extremely important property that they are already in direct Dyeing against white wool and against white cotton are non-squeeze.

Beispiel.
37,2 Teile Tolidindisulfosäure werdenExample.
37.2 parts of tolidinedisulfonic acid are used

3535

inin

bekannter Weise durch Zusatz von Salzsäure und 13,8 Teilen Natriumnitrit diazotiert, zu der so erhaltenen Tetrazoverbindung 14 Teile Methylketol, gelöst in 100 Teilen Salzsäure (20° Be.), zugegeben, ein Überschuß von essigsaurem Natrium zugesetzt und gerührt, bis daß die Bildung des Zwischenproduktes beendet ist. Man läßt darauf eine Lösung von 14,4 Teilen ß-Naphtol in verdünnter Natronlauge zulaufen und macht durch Zusatz von Sodalösung alkalisch. Nach einigen Stunden ist die Kuppelung beendet. Es wird nun der neue Farbstoff isoliert. Er färbt Wolle in klaren, orangen Tönen an.known manner by adding hydrochloric acid and 13.8 parts of sodium nitrite diazotized to of the tetrazo compound thus obtained, 14 parts of methyl ketol, dissolved in 100 parts of hydrochloric acid (20 ° Be.), Added, added an excess of sodium acetate and stirred, until the formation of the intermediate product has ended. A solution is left on it run in from 14.4 parts of ß-naphthol in dilute sodium hydroxide solution and make it by adding of soda solution alkaline. The coupling is finished after a few hours. It will now the new dye is isolated. He dyes wool in clear, orange tones.

Der analoge Farbstoff aus der Benzidindisulfosäure färbt ebenfalls Wolle orange.The analogous dye from benzidine disulfonic acid also dyes wool orange.

Claims (1)

Pate nt-An Spruch:Godfather saying: Abänderung des Verfahrens des Patents 160674, darin bestehend, daß man die Tetrazoverbindungen der Benzidin- bezw. Tolidin-m-disulfosäure anstatt mit 2 Molekülen Methylketol (a-Methylindol) hier in beliebiger Reihenfolge mit 1 Molekül Methylketol (a-Methylindol) und 1 Molekül ß-Näphtol kuppelt.Modification of the procedure of patent 160674, consisting in the fact that the Tetrazo compounds of Benzidin- respectively. Tolidine-m-disulfonic acid instead of 2 molecules Methyl ketol (a-methylindole) here in any order with 1 molecule Methyl ketol (a-methylindole) and 1 molecule of ß-naphthol are coupled.
DE1904163141D 1904-10-31 1904-10-31 Expired - Lifetime DE163141C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT23906D AT23906B (en) 1904-10-31 1905-07-22 Process for the preparation of orange disazo dyes for wool.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE160674T

Publications (1)

Publication Number Publication Date
DE163141C true DE163141C (en)

Family

ID=5681354

Family Applications (2)

Application Number Title Priority Date Filing Date
DE1904160674D Expired - Lifetime DE160674C (en) 1904-05-09 1904-05-09
DE1904163141D Expired - Lifetime DE163141C (en) 1904-10-31 1904-10-31

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE1904160674D Expired - Lifetime DE160674C (en) 1904-05-09 1904-05-09

Country Status (1)

Country Link
DE (2) DE160674C (en)

Also Published As

Publication number Publication date
DE160674C (en)

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