DE673027C - Process for the production of indigoid dyes - Google Patents

Process for the production of indigoid dyes

Info

Publication number
DE673027C
DE673027C DEI55136D DEI0055136D DE673027C DE 673027 C DE673027 C DE 673027C DE I55136 D DEI55136 D DE I55136D DE I0055136 D DEI0055136 D DE I0055136D DE 673027 C DE673027 C DE 673027C
Authority
DE
Germany
Prior art keywords
production
indigoid dyes
derivatives
dyes
oxy
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
DEI55136D
Other languages
German (de)
Inventor
Dr Richard Stuesser
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
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.)
Filing date
Publication date
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI55136D priority Critical patent/DE673027C/en
Application granted granted Critical
Publication of DE673027C publication Critical patent/DE673027C/en
Expired 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
    • C09B7/00Indigoid dyes
    • C09B7/08Other indole-indigos

Landscapes

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

Description

Verfahren zur Herstellung von indigoiden Farbstoffen In der Patentschrift 292 36o ist angegeben, daß man zu Küpenfarbstoffen von bräunlichblauer bis grünlichschwarzer Nuance von hoher Echtheit gelangt, wenn man in der Aminogruppe substituierte Aminonaphthole, nämlich Arylaminooxynaphthaline, mit freier o-Stellung mit reaktionsfähigen Isatin-a-Derivaten kondensiert.Process for making indigoid dyes In the patent 292 36o indicates that vat dyes range from brownish-blue to greenish-black Nuance of high authenticity is obtained when amino naphthols substituted in the amino group, namely arylaminooxynaphthalenes, with free o-position with reactive isatin-a-derivatives condensed.

Es wurde nun gefunden, daß man wertvolle Küpenfarbstoffe von, besonderer Klarheit erhält, wobei gleichzeitig eine Verschiebung der Nuance nach Grün erfolgt, wenn man Kernsubstitutionsprodukte von 2 # 3-Naphthisatinen in Form ihrer reaktionsfähigen a-Derivate mit i-Oxy-8-phenylaminonaphthalinenmitfreier 2-Stellung nach bekannten. Methoden kondensiert. Als geeignete Is:atinderivate haben sich beispielsweise das i-Chlor-2 # 3-naphthisatin erwiesen. Geeignete Kupplungskomponenten für das vorliegende Verfahren. sind beispielsweise i-Oxy-8'-janilidonaphthalin oder i-Oxy-8-p-methoxy:anilidonaphthalin.It has now been found that valuable vat dyes can be obtained from special Obtains clarity while at the same time shifting the shade to green, if you consider core substitution products of 2 # 3-naphthisatins in the form of their reactive α-derivatives with i-oxy-8-phenylaminonaphthalenes with a free 2-position according to known. Methods condensed. Suitable Is: atine derivatives have, for example, been found to be i-chloro-2 # 3-naphthisatin proved. Suitable coupling components for the present Procedure. are for example i-oxy-8'-janilidonaphthalene or i-oxy-8-p-methoxy: anilidonaphthalene.

Beispiel i 25o Gewichtsteile i-Chlor-2 # 3-naphthis:atina-chlorid werden mit 235 Gewichtsteilen i - Phenoylamino - 8 -,oxynaphth:alin in Chlorbenzol in der Wärme gekuppelt. Nach dem Abkühlen wird der Farbstoff abgesaugt, gewaschen und getrocknet. Der Farbstoff stellt ein dunkles blaugrünes, kristallinisches Pulver dar, das sich mit Hydrosulfit und Natron; lauge in. eine gelbe Küpe überführen l,äßt, aus welcher Textilfasern nach der Oxydation in klaren grünen Tönen mit vorzüglichen Echtheitseigenschaften angefärbt werden.Example i 250 parts by weight of i-chloro-2 # 3-naphthis: atina chloride are with 235 parts by weight of i - phenoylamino - 8 -, oxynaphth: alin in chlorobenzene coupled in the warmth. After cooling, the dye is filtered off with suction and washed and dried. The dye is a dark blue-green, crystalline powder dar, which deals with hydrosulfite and soda; transfer lye into a yellow vat from which textile fibers after oxidation in clear green tones with excellent Fastness properties are stained.

Beispiel -- 377 Gewichtsteile i-Chlor-2 # 3-naphehisatin.-a-chlornaphthalid werden mit 265 Gewichtsteilen i-p-Methoxyphenylamino-8-,oxynaphthalin in Chlorbenzol mit etwas Piperidin in der Wärme kondensiert. Nach Beendigung der Reaktion wird der ,ausgeschiedene Farbstoff abfiltriert, gewaschen und getrocknet. Er stellt ein dunkles kristallinisches Pulver dar, das sich mit Hydrosulfit -und Alkalien in eine gelbe Küpe überführen läßt, welche Textilfasern nach der Oxydation in klaren grünen Tönen von sehr hohen Echtheitseigenschaften anfärbt.Example - 377 parts by weight of i-chloro-2 # 3-naphehisatin.-a-chloronaphthalide are condensed with a little piperidine in chlorobenzene with 265 parts by weight of ip-methoxyphenylamino-8-, oxynaphthalene in chlorobenzene. When the reaction has ended, the dyestuff which has separated out is filtered off, washed and dried. It is a dark crystalline powder that can be converted into a yellow vat with hydrosulfite and alkalis, which, after oxidation, dyes textile fibers in clear green tones with very high fastness properties.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung von indigoiden Farbstoffen durch Kondensation von Isatina-Derivaten mit ,Arylaminooxynaphehabnen, dadurch gekennzeichnet, daß man Kernsubstitutionsprodukte von 2 # 3-Naphthisatinen in Form ihrer reaktionsfähigen a-Derivate mit i-Oxy-8-phenylami;n:onaphthalinen mit freier 2-Stellung kondensiert.PATENT CLAIM Process for the production of indigoid dyes by condensation of Isatina derivatives with, Arylaminooxynaphehabnen, characterized in, that you get core substitution products of 2 # 3-naphthisatins in the form of their reactive a-derivatives with i-oxy-8-phenylami; n: onaphthalenes with free 2-position condensed.
DEI55136D 1936-05-30 1936-05-30 Process for the production of indigoid dyes Expired DE673027C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI55136D DE673027C (en) 1936-05-30 1936-05-30 Process for the production of indigoid dyes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI55136D DE673027C (en) 1936-05-30 1936-05-30 Process for the production of indigoid dyes

Publications (1)

Publication Number Publication Date
DE673027C true DE673027C (en) 1939-03-15

Family

ID=7194038

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI55136D Expired DE673027C (en) 1936-05-30 1936-05-30 Process for the production of indigoid dyes

Country Status (1)

Country Link
DE (1) DE673027C (en)

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