DE746454C - Process for the preparation of a water-insoluble monoazo dye - Google Patents

Process for the preparation of a water-insoluble monoazo dye

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Publication number
DE746454C
DE746454C DEI64735D DEI0064735D DE746454C DE 746454 C DE746454 C DE 746454C DE I64735 D DEI64735 D DE I64735D DE I0064735 D DEI0064735 D DE I0064735D DE 746454 C DE746454 C DE 746454C
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DE
Germany
Prior art keywords
preparation
water
monoazo dye
insoluble monoazo
solution
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
DEI64735D
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German (de)
Inventor
Dr Werner Schleifenbaum
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.)
IG Farbenindustrie AG
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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.)
Filing date
Publication date
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI64735D priority Critical patent/DE746454C/en
Application granted granted Critical
Publication of DE746454C publication Critical patent/DE746454C/en
Expired legal-status Critical Current

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Description

Verfahren zur Herstellung eines wasserunlöslichen Monoäzofarbstoffs Es wurde gefunden, daß man einen roten Pigmentfarbstoff erhält, wenn man die Diazö- verbin(lung aus t-Amino-2, 4, 5-trichlorbenzol mit r - (2', 3'-Oxynaplithoylainino) -z-niethyl- benzol kuppelt. Zur .Herstellung des Farbstoffs vereinigt plan eine L5Sung oder Suspension des I-(2', 3'- 0.,zyfiaplithoyl<tniino)-2-metliylbenzols mit dei- I)iazolösuns des );-Amino-2, @., "-triclilorben- ?ols, wie man sie beispielsweise durch Dia7o- tieren. der Base in Ameisensäure, Essigsäure oller Scli%vefels:iure erhält. MVegen der Zer- setzlichl:eit der Diazöt-erbindung kuppelt nian Zweckmäßig in saurem @'Iittel. 1Ian I:ann die t-on (lcr Dlazolosung herrül)rende lIineral- s:iure zwecks Beschleunigung der Kupplung ganz oder teilweise durch säurebindende Mit- tel, wie (lie Salze organiseller Säuren, ab* _stunipf(m. 1_s ist vo1-teilhart. bei der Herstel- lang des Farbstoffs -F-'lltlllgier- bzw. I)isl)ergiei-- mi fiel 1l it-r_tw(# rwen(lco. Der neue Farbstoff zeichnet sich vor bekannten Monoazofarbstoffen, die sich du die Stellung der Methylgruppe im Arylan regt oder durch den Ersatz der llethylgru durch eine 12etho-xygnippe unterschei( durch größere Kla,rlicit, größere Farbstä und. verbesserte Übcrspritzechtheit aus. ist sehr lichtecht und sehr schwer löslich Ü1, Alkohol und den üblichen Lacklösur mitteln. Wegen seiner gräten Eigenschaf eignet er sich vorzüglich für die Verwendl in l)lanstrichen und graphischen Di-ticken. (las l@;irlx:ll v(111 \itrocelluloselacken. (legen nute überspritzechtheit verlam,t w uild für die Bereitung t-llll Kalle-. Leilli- 1 Tapetenfarben. Beispiel 1 2(9o g i - (2@ 3'-()\@'1laphthOy'1a111111U@-.-3- tliVll)enzol Werden ill _-2oo ccin Wasser, (' 117a11 2_5(1g @?11/Ilig(: Natr(Nllatlge tlll(1- 'S g Kondensationproduktes aus Ölsäurechlorid und inetlivlaininoiitliansulfonsaureni Natrium zugesetzt hat, durch Erwärmen auf So bis 9o° gelöst. Die Lösung wird durch Zugabe voll Eis auf 5° ab,ekiihlt und das Arvlamid durch 7ufliel3eiilassetl voll Salzsäure bis zur mineralsauren Reaktion wieder ausgefällt. ' Ferner werden 196,5 g i-Aini110-2, 4, 5-tri- . clilorl)enzol in i ioo g Eisessig durch leichtes Erwärmen gelöst. Unter Rühren versetzt mtui> die Lösung mit .+15 ccm 32°higer Salzsäure!. und nach Abkühlen auf o° mit einer Lösung voll 69g Natriumnitrit in 25o ccm Wasser. Die Diazotierung ist nach kurzer Zeit beendet.Process for the preparation of a water-insoluble monoazo dye It was found that you can get a red Pigment obtained by using the diazo compound from t-amino-2, 4, 5-trichlorobenzene with r - (2 ', 3'-Oxynaplithoylainino) -z-niethyl- benzene couples. Combined for the production of the dye plan a solution or suspension of the I- (2 ', 3'- 0., zyfiaplithoyl <tniino) -2-methylbenzene with the I) iazolösuns des); - Amino-2, @., "-Triclilorben- ? ols, as can be seen, for example, by Dia7o- animals. the base in formic acid, acetic acid oller Scli% vefels: iure receives. Against the Legally: since the Diazöt connection, nian has been involved Appropriately in sour liquid. 1Ian I: ann die t-on (lcr Dlazo solution) rende lIineral- s: iure for the purpose of accelerating the clutch completely or partially through acid-binding agents tel, like (lie salts of organic acids, from * _stunipf (m. 1_s is vo1-teilhart. when manufacturing long of the dye -F-'lltlllgier- or I) isl) energy- mi fell 1l it-r_tw (# rwen (lco. The new dye stands out known monoazo dyes that you the position of the methyl group in the arylan stimulates or by replacing the llethylgru distinguished by a 12etho-xygnippe ( by larger Kla, rlicit, larger color sticks and. improved fastness to over-injection. is very lightfast and very difficult to dissolve Ü1, alcohol and the usual paint solution average. Because of its greatest quality it is ideally suited for use in l) paints and graphic di-ticks. (las l @; irlx: ll v (111 \ itrocelluloselacken. (put groove over injection fastness, tw uild for the preparation t-llll Kalle-. Leilli- 1 Wallpaper colors. example 1 2 (9o gi - (2 @ 3 '- () \ @'1laphthOy'1a111111U@-.-3- tliVll) enzol be ill _-2oo ccin water, (' 117a11 2_5 (1g @? 11 / Ilig (: Natr (Nllatlge tlll (1- 'S g Condensation product of oleic acid chloride and inetlivlaininoiitliansulfonsaureni sodium added, dissolved by heating to So to 90 °. The solution is cooled down to 5 ° by adding ice, and the amide is precipitated again by adding hydrochloric acid to a mineral acid reaction. 'In addition, 196.5 g of i-Aini110-2, 4, 5-tri-. clilorl) enzol dissolved in 100 g of glacial acetic acid by gentle heating. While stirring, the solution is mixed with + 15 ccm of 32 ° hydrochloric acid. and after cooling to 0 ° with a solution full of 69g sodium nitrite in 25o ccm water. The diazotization is over after a short time.

Die Diazolösung fügt man zu der Suspension des Arvlamids und läßt in dieses Gemisch langsam eine Lösung von 2;o g wasserfreiem Natriumacetat in 1300 ccm Wasser einfließen. \Tach beendeter Kupplung, die bei etwa 2o° durchgeführt wird, wird der erhaltene Piginentfarbstoft abgesaugt und gründlich gewaschen. Getrocknet stellt er ein leuchtend rotes Pulver dar. Beispiel 2 196,5 g i-Ainino-2, d., 5-trichlorbenzol wer- den in iooo g Schwefelsäuremonollydrat ge- löst und durch langsames Zuftießenlassen der berechneten Menge Nitrosylschwefe1säure di- azotiert. Xach 11_stünd.igem Rühren gießt man auf Eis. Der erhaltenen Diazolösung setzt man eine Lösung voll 25g des Kondensationsproduktes von Sperrnölalkoliol mit Äthylenowd in I00 ccin Wasser zu und fügt sie zu der nach Beispiel i erhaltenen Arylamidsuspension. Die Kupplung ist nach 36 Stunden beendet. Die Weiterverarbeitung geschieht in Beispiel i.The diazo solution is added to the suspension of Arvlamids and can in this mixture was slowly added a solution of 2; og anhydrous sodium acetate in 1300 cc of water flow. After the coupling is complete, which is carried out at about 20 °, the pigment obtained is filtered off with suction and washed thoroughly. When dried it is a bright red powder. Example 2 196.5 g of i-ainino-2, i.e., 5-trichlorobenzene are the in iooo g sulfuric acid monolydrate loosens and by slowly letting the calculated amount of nitrosylsulfuric acid di- azotized. After stirring for 11 hours, it is poured on ice. A solution full of 25 g of the condensation product of Sperrnölalkoliol with Äthylenowd in 100 ccin water is added to the diazo solution obtained and it is added to the arylamide suspension obtained according to Example i. The coupling is complete after 36 hours. The further processing takes place in example i.

_7 :Man kann die Kupplung auch in der Weise aiisführeti, daß man der Arvlamidstispension '.einen geeigneten Trägerstoff, z. B. frisch gefälltes Bariunistilfat, zufügt und die so erhalteile Suspension mit der Diazolösung vereinigt. ._7: The clutch can also be carried out in such a way that one of the Arvlamidstispension '. A suitable carrier, e.g. B. freshly precipitated Bariuni tilfate, and the suspension thus obtained is combined with the diazo solution. .

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines wasser- unlöslichen Monoazofarbstofs, dadurch gekennzeichnet, daß inan die Diazoverbin- dung aus i Ainino-2, 4, 5-triclilorbenzol mit i-(?, 3'-Oxvnaplitli(>vlamino)-2-ine- tlivlbetizol für sich oder in Gegenwart eines Trägerstoffs kuppelt.
Zur Abgrenzung des Anmcidungsgegenstandes vom Stand der Technik ist im Erteilungsverfahren folgende Druckschrift in Betracht gezogen worden: britische Patentschrift ....... r.309216.
PATENT CLAIM: Process for the production of a water insoluble monoazo dye, thereby characterized that inan the diazo connections Preparation from i Ainino-2, 4, 5-triclilobenzene with i- (?, 3'-Oxvnaplitli (> vlamino) -2-ine- tlivlbetizol on its own or in the presence a carrier coupling.
To distinguish the subject of the application from the state of the art, the following publication was considered in the grant procedure: British patent specification ....... r.309216.
DEI64735D 1939-06-02 1939-06-02 Process for the preparation of a water-insoluble monoazo dye Expired DE746454C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI64735D DE746454C (en) 1939-06-02 1939-06-02 Process for the preparation of a water-insoluble monoazo dye

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI64735D DE746454C (en) 1939-06-02 1939-06-02 Process for the preparation of a water-insoluble monoazo dye

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DE746454C true DE746454C (en) 1944-08-05

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1273728B (en) * 1963-02-01 1968-07-25 Bayer Ag Monoazo dye and process for its preparation
DE1291432B (en) * 1961-11-29 1969-03-27 Geigy Ag J R Monoazo pigment dyes and processes for their preparation

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB309216A (en) * 1927-12-31 1929-04-02 Ig Farbenindustrie Ag Manufacture of fast azo-dyestuffs

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB309216A (en) * 1927-12-31 1929-04-02 Ig Farbenindustrie Ag Manufacture of fast azo-dyestuffs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1291432B (en) * 1961-11-29 1969-03-27 Geigy Ag J R Monoazo pigment dyes and processes for their preparation
DE1273728B (en) * 1963-02-01 1968-07-25 Bayer Ag Monoazo dye and process for its preparation

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