DE677665C - Process for the production of condensation products - Google Patents

Process for the production of condensation products

Info

Publication number
DE677665C
DE677665C DEI53755D DEI0053755D DE677665C DE 677665 C DE677665 C DE 677665C DE I53755 D DEI53755 D DE I53755D DE I0053755 D DEI0053755 D DE I0053755D DE 677665 C DE677665 C DE 677665C
Authority
DE
Germany
Prior art keywords
condensation products
production
yellow
acetate silk
alcohol
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
DEI53755D
Other languages
German (de)
Inventor
Dr Heinrich Ritter
Dr Norbert Steiger
Dr Werner Zerweck
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 DEI53755D priority Critical patent/DE677665C/en
Application granted granted Critical
Publication of DE677665C publication Critical patent/DE677665C/en
Expired legal-status Critical Current

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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
    • C09B51/00Nitro or nitroso dyes

Landscapes

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

Description

Verfahren zur Herstellung von Kondensationsprodukten Es wurde gefunden, daß man durch Kondensation von i-Halogen-2-nitrobenzol-4-alkylsulfonen mit aromatischen Aminen, die keine freien Sulfonsäuregruppen enthalten, Kondensationsprodukte der Diphenylaminreihe erhält, die sich insbesondere zum Färben von Lacken und von Acetatseide eignen. Wird Acetatseide nach einer der üblichen Methoden mit den obengenannten Kondensationsprodukten gefärbt, so erhält man lebhafte grünstichiggelbe bis orange Farbtöne von vorzüglichen Echtheitseigenschaften. Gegenüber den bekannten Reaktionsprodukten aus i-Halogen-2, q.-dinitrobenzol zeichnen sich die neuen Produkte durch bessere Lichtechtheit aus.Process for the production of condensation products It has been found that by condensation of i-halo-2-nitrobenzene-4-alkyl sulfones with aromatic Amines which do not contain free sulfonic acid groups, condensation products of the Diphenylamine range, which is particularly suitable for dyeing lacquers and acetate silk suitable. Make acetate silk using one of the usual methods with the above Colored condensation products, vivid greenish yellow to orange are obtained Shades of excellent fastness properties. Compared to the known reaction products From i-halogen-2, q.-dinitrobenzene, the new products are characterized by better ones Lightfastness.

Beispiel i 5 kg i-Chlor-2-nitrabenzol-4-methylsulfon werden mit etwa ioo kg Alkohol und g kg Anilin mehrere Stunden unter Rückfluß zum Sieden erhitzt. - Beim Erkalten scheidet sich das Reaktionsprodukt, das 2-Nitro-diphenylamin-4-methylsulfon, in gelben Kristallen aus, die nach Umkristallisieren aus Alkohol bei 134 bis 135 ° C schmelzen. - Der Körper färbt Acetatseide in gelben Tönen von hervorragender Lichtechtheit. Bei Verwendung von p-Anisidin an Stelle von Anilin wird das entsprechende 4'-Methoxyderivat gebildet, das nach Umkristallisieren in orangegelben Kristallen vom Schmelzpunkt 174 bis 175 ° C erhalten wird und Acetatseide in goldgelben Tönen von gleichfalls vorzüglicher Lichtechtheit färbt. Beispiele 5 kg i-Chlor-2-nitrobenzol-4-äthylsulfon werden mit der 4- bis 5fachen Menge Anilin kurze Zeit unter Rühren auf i 5o bis 16o ° C erhitzt. Alsdann wird mit der 12- bis 15-fachen Menge Alkohol verdünnt, worauf beim Erkalten das Reaktionsprodukt in gelben Blättchen auskristallisiert. Nach Umkristallisieren schmilzt dasselbe bei 133 ° C und färbt Acetatseide ebenfalls in gelben waschechten Tönen von hervorragender Lichtechtheit.Example i 5 kg of i-chloro-2-nitrabenzene-4-methylsulfone are added with about 100 kg of alcohol and g kg of aniline heated to boiling under reflux for several hours. - When cooling down, the reaction product, the 2-nitro-diphenylamine-4-methylsulfone, separates in yellow crystals, which after recrystallization from alcohol at 134 to 135 Melting ° C. - The body colors acetate silk in yellow tones of excellent Lightfastness. If p-anisidine is used instead of aniline, the corresponding 4'-methoxy derivative formed, which after recrystallization in orange-yellow crystals from melting point 174 to 175 ° C is obtained and acetate silk in golden yellow tones also has excellent lightfastness. Examples 5 kg of i-chloro-2-nitrobenzene-4-ethyl sulfone are with 4 to 5 times the amount of aniline for a short time while stirring to i 50 to Heated at 16o ° C. Then it is diluted with 12 to 15 times the amount of alcohol, whereupon the reaction product crystallizes out in yellow flakes on cooling. After recrystallization, it melts at 133 ° C. and also dyes acetate silk in yellow, washable shades of excellent lightfastness.

Das in analoger Weise dargestellte 2-Nitrodiphenylamin-4-butylsulfon vom Schmelzpunkt io5 ° C (aus Alkohol kristallisiert) färbt ebenfalls ein lichtechtes Gelb auf Acetatseide.The 2-nitrodiphenylamine-4-butylsulfone prepared in an analogous manner with a melting point of 10 ° C (crystallized from alcohol) also has a lightfast color Yellow on acetate silk.

Bei mehrstündigem Erhitzen von io kg p-A@minophenol und 5 kg i-Chlor-2-ritrabenzol-4-äthylsulfon mit der iofachen Menge Alkohol wird das 4'-Oxy-2-nitrodiphenylamin-4-äthylsulfon vom Schmelzpunkt 177 ° C er- halten, welches Acetatseide in gelborangen Tönen von gleichfalls vorzüglicher Lichtechtheit färbt.When 10 kg of pA @ minophenol and 5 kg of i-chloro-2-ritrabenzene-4-ethyl sulfone are heated for several hours with 10 times the amount of alcohol, 4'-oxy-2-nitrodiphenylamine-4-ethyl sulfone with a melting point of 177 ° C. is obtained , which dyes acetate silk in yellow-orange shades of equally excellent lightfastness.

Beispiel 3 5 kg i-Chlor-2-nitrobenzol-4-propylsulfon werden mit der 4- bis 5fachen Menge p-Toluidin kurze Zeit auf i 5o bis-16o ° C erhitzt. Nach dem Verdünnen mit etwa ioo kg Alkohol scheidet sich das Reaktionsprodukt beim Erkalten in orangefarbigen Kristallen aus. Es färbt Acetatseide in orangegelben Tönen von ebenfalls hervorragenden Echtheitseigenschaften.Example 3 5 kg of i-chloro-2-nitrobenzene-4-propylsulfone are mixed with the 4 to 5 times the amount of p-toluidine heated to between 150 and 160 ° C. for a short time. After this When diluted with about 100 kg of alcohol, the reaction product separates on cooling in orange crystals. It dyes acetate silk in shades of orange-yellow also excellent fastness properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Kondensationsprodukten der Diphenylaminreihe, dadurch gekennzeichnet, daß man i-Halogen-2-nitrobenzol-4-all<ylsulfone mit aromatischen Aminen, die keine freien Sulfonsäuregruppen enthalten, gegebenenfalls in Lösungsmitteln, erhitzt.PATENT CLAIM: Process for the production of condensation products of the diphenylamine series, characterized in that i-halo-2-nitrobenzene-4-all <ylsulfones with aromatic amines which do not contain any free sulfonic acid groups, if appropriate in solvents, heated.
DEI53755D 1935-11-29 1935-11-29 Process for the production of condensation products Expired DE677665C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI53755D DE677665C (en) 1935-11-29 1935-11-29 Process for the production of condensation products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI53755D DE677665C (en) 1935-11-29 1935-11-29 Process for the production of condensation products

Publications (1)

Publication Number Publication Date
DE677665C true DE677665C (en) 1939-06-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEI53755D Expired DE677665C (en) 1935-11-29 1935-11-29 Process for the production of condensation products

Country Status (1)

Country Link
DE (1) DE677665C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE959669C (en) * 1953-11-27 1957-03-07 Ciba Geigy Process for the preparation of nitro dyes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE959669C (en) * 1953-11-27 1957-03-07 Ciba Geigy Process for the preparation of nitro dyes

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