DE74699C - Process for the preparation of benzylated azo dyes - Google Patents

Process for the preparation of benzylated azo dyes

Info

Publication number
DE74699C
DE74699C DENDAT74699D DE74699DA DE74699C DE 74699 C DE74699 C DE 74699C DE NDAT74699 D DENDAT74699 D DE NDAT74699D DE 74699D A DE74699D A DE 74699DA DE 74699 C DE74699 C DE 74699C
Authority
DE
Germany
Prior art keywords
dyes
acid
dioxynaphthalene
molecül
amidoazo
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
DENDAT74699D
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.)
Bayer AG
Original Assignee
Farbenfabriken Vorm Friedr Bayer and Co
Publication of DE74699C publication Critical patent/DE74699C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • C09B43/00Preparation of azo dyes from other azo compounds
    • C09B43/11Preparation of azo dyes from other azo compounds by introducing hydrocarbon radicals or substituted hydrocarbon radicals on primary or secondary amino groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Paper (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Die Amidoazofarbstoffe derThe amidoazo dyes of

Formel NH2-R Formula NH 2 -R

allgemeinengeneral

N=N-R' (wobei N = NR ' (where

unter R1 die Reste von gekuppelten Dioxynaphtalinsulfosäuren zu verstellen sind) werden beim Behandeln mit Benzylchlorid oder analogen Benzylverbindungen in Gegenwart von Alkalien glatt in die entsprechenden Benzylfarbstoffe übergeführt, welche technisch wichtige Vorzüge gegenüber den Ausgangsproducten besitzen.under R 1, the residues of coupled dioxynaphthalene sulfonic acids are to be adjusted) are converted smoothly into the corresponding benzyl dyes on treatment with benzyl chloride or analogous benzyl compounds in the presence of alkalis, which have technically important advantages over the starting products.

Letztere können auf bekannte Weise erhalten werden, wenn man z. B. die Acetylverbindungen von Diaminen bezw. substituirten Diaminen diazotirt, dann die resultirenden Diazoproducte mit Dioxynaphtalinsulfosäuren kuppelt und hierauf die Acetylgruppe abspaltet, oder wenn man, ausgehend von Mononitroverbindungen der Amine bezw. substituirten Amine, deren Diazoderivate mit Dioxynaphtalinsulfosäuren combinirt und nach beendigter Kuppelung die Nitrogruppe durch geeignete Reductionsmittel in die Amidogruppe überführt.The latter can be obtained in a known manner by e.g. B. the acetyl compounds of diamines respectively. substituted diamines are diazotized, then the resulting diazo products couples with dioxynaphthalene sulfonic acids and then splits off the acetyl group, or if one, starting from mononitro compounds of the amines BEZW. substituted amines, their Diazo derivatives combined with dioxynaphthalene sulfonic acids and, after coupling is complete, the Nitro group converted into the amido group by suitable reducing agents.

Von den genannten Ausgangsproducten liefern besonders diejenigen werthvolle Resultate, welche in obigerWeise ausMonoacetyl-p-phenylendiamin bezw. p-Nitranilin und den Sulfosäuren des Ci1 a4-Dioxynaphtalins gewonnen werden.Of the starting products mentioned, particularly those which produce valuable results in the above manner from monoacetyl-p-phenylenediamine and / or. p-Nitraniline and the sulfonic acids of Ci 1 a 4 -Dioxynaphtalins are obtained.

Das Verfahren zur Herstellung dieser neuen Farbstoffe erfolgt allgemein in der Weise, dafs man 1 Molecül der zunächst gebildeten Amidoazopröducte mit 1 Molecül Benzylchlorid bezw. einer analogen Benzylverbindung und 1 Molecül Alkali bezw. Y2 Molecül Alkalicarbonat behandelt.The process for the preparation of these new dyes is generally carried out in such a way that 1 Molecül of the amidoazo products initially formed with 1 Molecül benzyl chloride respectively. an analogous benzyl compound and 1 Molecül alkali BEZW. Y 2 Molecül alkali carbonate treated.

Beispiel:Example:

Farbstoff, erhalten durch Benzyliren von p-Amidobenzolazo-ttj c^-dioxynaphtalin-cig-monosulfosäure. Dye obtained from p-amidobenzolazo-ttj by benzyling c ^ -dioxynaphthalene-cig-monosulfonic acid.

38,1 kg des aus Acetyl-p-phenylendiamin durch Diazotiren, Kuppeln mit αΎ ct4-Dioxynaphtalin-a3-monosulfosäure und Abspalten der Acetylgruppe erhältlichen Farbstoffs werden in Wasser gelöst. Nach Zusatz von 12,7 kg Benzylchlorid und 7 kg Potasche schüttelt bezw. rührt man unter gelindem Erwärmen, bis der Geruch des Benzylchlorids vollständig verschwunden ist. Der schwerlösliche Farbstoff wird durch Abfiltriren, Pressen und Trocknen isolirt. Er färbt Wolle in saurem Bade dunkelblau.38.1 kg of the dye obtainable from acetyl-p-phenylenediamine by diazotiring, coupling with α Ύ ct 4 -dioxynaphthalene-a 3 -monosulfonic acid and cleavage of the acetyl group are dissolved in water. After adding 12.7 kg of benzyl chloride and 7 kg of Potasche shakes respectively. The mixture is stirred with gentle warming until the odor of the benzyl chloride has completely disappeared. The sparingly soluble dye is isolated by filtering off, pressing and drying. He dyes wool dark blue in an acid bath.

In ähnlicher Weise erhält man die anderen Farbstoffe, wenn man an Stelle des in vorstehendem Beispiele benutzten Amidoazoproductes die analogen Amidoazoverbindungen aus Ci1 a4-Dioxynaphtalin-a2ßj-disulfosäure bezw. Ct1 a4 - Dioxynaphtalin - ß2 ß3 - disulfosäure verwendet. The other dyes are obtained in a similar manner if, instead of the amidoazo products used in the preceding examples, the analogous amidoazo compounds from Ci 1 a 4 -dioxynaphthalene-a 2 βj-disulfonic acid or. Ct 1 a 4 - dioxynaphthalene - ß 2 ß 3 - disulfonic acid used.

Dieselben erzeugen auf Wolle in saurem Bade rein blaue Nuancen.These produce pure blue nuances on wool in an acidic bath.

An Stelle des Benzylchlorids (1 Molecül) kann man natürlich Benzylbromid oder ähnliche Benzylirungsmittel, an Stelle von Potasche (Y2 Molecül) lassen sich andere Alkalicarbonate (Y2 Molecül) oder auch Aetzalkalien (1 Molecül) verwenden.In place of the benzyl chloride (1 molecule) one can of course use benzyl bromide or similar benzylating agents, instead of potash (Y 2 molecule) other alkali metal carbonates (Y 2 molecule) or caustic alkalis (1 molecule) can be used.

Die so entstehenden Farbstoffe stellen Gemische von den in der französischen Patent-The resulting dyes represent mixtures of the in the French patent

Claims (1)

schrift Nr. 212648 zuerst beschriebenen Monobenzyl-p-amidobenzolazo-U1 Ol4-dioxynaphtalinsulfosäurefarbstoffenundvonp-Amidobenzolazo-Ot1 ai - dioxyhaphtalinsulfosäuremonobenzylesterfarbstoffen dar, deren gleichzeitige Bildung dadurch veranlafst wird, dafs beim Benzyliren der Benzylrest theils Wasserstoff in der Amidogruppe substituirt, theils mit einer Sulfogruppe unter Bildung von Sulfobenzylestern reagirt.Document No. 212648 first described monobenzyl-p-amidobenzolazo- U 1 Ol 4 - dioxynaphthalenesulfonic acid dyes and vonp-amidobenzolazo-Ot 1 a i - dioxyhaphthalenesulfonic acid monobenzyl ester dyes, the simultaneous formation of which is caused by the fact that the benzyl radical is partially substituted with hydrogen in the benzylic group a sulfo group reacts to form sulfobenzyl esters. Von den nicht benzylirten Amidoazofarbstoffen unterscheiden sich die neuen Farbstoffe hauptsächlich dadurch, dafs sie auf Wolle in sauren Bädern rein blaue Nuancen liefern, während die ersteren mehr oder weniger rothviolette Färbungen erzeugen.The new dyes differ from the non-benzylated amidoazo dyes mainly because they provide pure blue nuances on wool in acid baths, while the former produce more or less reddish-violet colorations. Pate nt-Ans ρ rüche:Pate nt claims: ι . Verfahren zur Darstellung von Wolle in saurem Bade färbenden Azofarbstoffen, darin bestehend, dafs man Amidoazofarbstoffe der allgemeinen Formelι. Process for the preparation of azo dyes which dye wool in an acid bath, consisting in using amidoazo dyes of the general formula NH2-R-N=N-R1
(worin mit R1 die Reste von gekuppelten Dioxynaphtalinsulfosäuren bezeichnet sind) mit Benzylchlorid bezw. analogen Benzylverbindungen bei Gegenwart von Alkalien behandelt.
NH 2 -RN = NR 1
(where R 1 denotes the residues of coupled dioxynaphthalene sulfonic acids) with benzyl chloride and respectively. analogous benzyl compounds treated in the presence of alkalis.
Die besonderen Ausführungsformen des nach Anspruch 1. geschützten Verfahrens, darin bestehend, dafs man 1 Molecül derjenigen Amidoazofarbstoffe, welche aus Monoacetyl - ρ - phenylendiamin bezw. p-Nitranilin durch Diazotiren, Kuppeln mit Ct1 ai - Dioxynaphtalin - a3 - monosulfosäure, U1 a4-Dioxynaphtalin-a2 ßj-disulfosäure oder Ct1 a4-Dioxynaphtalin-ß.2 ß3-disulfosäure und durch darauf folgendes Abspalten der Acetylgruppe bezw. Reduciren der Nitrogruppe erhalten werden können, mit ι Molecül Benzylchlorid oder analogen Benzylirungsmitteln in Gegenwart von V2 Molecül Alkalica
Alkalihydroxyd behandelt.
The particular embodiments of the process protected according to claim 1, consisting in that 1 Molecül of those amidoazo dyes which are obtained from monoacetyl - ρ - phenylenediamine or. p-Nitraniline by diazotiring, coupling with Ct 1 a i - dioxynaphthalene - a 3 - monosulfonic acid, U 1 a 4 -dioxynaphthalene-a 2 ßj-disulfonic acid or Ct 1 a 4 -dioxynaphthalene-ß. 2 ß 3 -disulfonic acid and respectively by splitting off the acetyl group. Reduciren the nitro group can be obtained with ι Molecül benzyl chloride or similar Benzylirungsmittel in the presence of V 2 Molecül Alkalica
Treated alkali hydroxide.
DENDAT74699D Process for the preparation of benzylated azo dyes Expired - Lifetime DE74699C (en)

Publications (1)

Publication Number Publication Date
DE74699C true DE74699C (en)

Family

ID=347725

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT74699D Expired - Lifetime DE74699C (en) Process for the preparation of benzylated azo dyes

Country Status (1)

Country Link
DE (1) DE74699C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6797041B2 (en) 2002-03-01 2004-09-28 Greenheck Fan Corporation Two stage air filter
US6814783B2 (en) 2001-03-01 2004-11-09 Phillips Plastics Corporation Filtration media of porous inorganic particles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6814783B2 (en) 2001-03-01 2004-11-09 Phillips Plastics Corporation Filtration media of porous inorganic particles
US6797041B2 (en) 2002-03-01 2004-09-28 Greenheck Fan Corporation Two stage air filter
US6994743B2 (en) 2002-03-01 2006-02-07 Greenheck Fan Corporation Two stage air filter

Similar Documents

Publication Publication Date Title
DE2451257A1 (en) PROCESS FOR PREPARING CONCENTRATED DYE SOLUTIONS
DE74699C (en) Process for the preparation of benzylated azo dyes
DE1945451A1 (en) New dye bases, processes for their production and their use as coloring agents for keratin fibers
DE645267C (en) Process for the production of light-sensitive diazo layers and images from them on any type of substrate
DE3005348A1 (en) METHOD FOR THE PRODUCTION OF SULFUR ACID SEMESTERS
DE61174C (en) Process for the preparation of diamidonaphthalene-yS-disulfonic acid
DE965617C (en) Process for developing photographic images, especially colored images, with the aid of p-dialkylaminoaniline derivatives
DE865036C (en) Process for the preparation of tetrakisazo dyes
DE965346C (en) Process for the preparation of a water-insoluble monoazo dye
DE1544524C3 (en)
DE1932826A1 (en) Azo dye and process for its preparation
DE2850901B2 (en) Process for printing with developing dyes
DE184689C (en)
DE1544494B1 (en) Process for the production of azo dyes
DE2513256A1 (en) STABILIZED HALOGENTRIAZINE DYE PREPARATIONS
DE955946C (en) Process for printing fabrics made from natural or regenerated cellulose
DE2103757A1 (en) Disazo dye, its manufacture and use
DE131364C (en)
DE639185C (en) Process for the production of Kuepen dye preparations
DE957834C (en) Process for the production of white, halftone or colored effects on fabrics made from cellulose esters or ethers
DE620322C (en) Process for the production of insoluble azo dyes on the fiber
DE727698C (en) Process for the production of azo dyes
DE3208141A1 (en) METHOD FOR PRODUCING CONCENTRATED, WATER-BASED SOLUTIONS OF CHROME-COMPLEX SULPHOGROUPLE-CONTAINING AZO AND / OR AZOMETHINE DYES
DE81202C (en)
DE100778C (en)