DE16750C - Process for the preparation of dyes of the rosaniline grater from Niiroleukobasen of triphenylmethane - Google Patents

Process for the preparation of dyes of the rosaniline grater from Niiroleukobasen of triphenylmethane

Info

Publication number
DE16750C
DE16750C DENDAT16750D DE16750DA DE16750C DE 16750 C DE16750 C DE 16750C DE NDAT16750 D DENDAT16750 D DE NDAT16750D DE 16750D A DE16750D A DE 16750DA DE 16750 C DE16750 C DE 16750C
Authority
DE
Germany
Prior art keywords
rosaniline
triphenylmethane
dyes
niiroleukobasen
grater
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.)
Active
Application number
DENDAT16750D
Other languages
German (de)
Original Assignee
Dr. O. FISCHER in München, Arcostrafse 1/2
Publication of DE16750C publication Critical patent/DE16750C/en
Active 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
    • C09B11/00Diaryl- or thriarylmethane dyes
    • C09B11/04Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
    • C09B11/10Amino derivatives of triarylmethanes
    • C09B11/12Amino derivatives of triarylmethanes without any OH group bound to an aryl nucleus
    • C09B11/20Preparation from other triarylmethane derivatives, e.g. by substitution, by replacement of substituents

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Fats And Perfumes (AREA)
  • Detergent Compositions (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

KLASSE 22: Farbstoffe, Firnisse, Lacke.CLASS 22: dyes, varnishes, lacquers.

Dr. OTTO FISCHER in MÜNCHEN.Dr. OTTO FISCHER in MUNICH.

Triphenylmethans.Triphenylmethane.

Patentirt im Deutschen Reiche vom 8. Februar 1881 ab.Patented in the German Empire on February 8, 1881.

Durch Einwirkung von Paranitrobittermandelöl auf Anilinsalze bei Gegenwart von Chlorzink erhält man ein Paranitrodiamidotriphenylmethan nach der Gleichung:By the action of paranitro bitter almond oil on aniline salts in the presence of zinc chloride one obtains a paranitrodiamidotriphenylmethane according to the equation:

NO2 -C6H4,. CO H+ 2 C6 H5 - NH2 = NO 2 -C 6 H 4,. CO H + 2 C 6 H 5 - NH 2 =

N0*'C*H*'CH\cV£.NH2 N0 * ' C * H *' CH \ cV £ .NH 2

Diese Nitrobase liefert bei der Reduction Paraleukanilin, welches durch Oxydation in Rosanilin übergeführt werden kann.This nitro base supplies paraleukaniline during the reduction, which by oxidation in Rosaniline can be transferred.

Meine Erfindung ist nun folgende:My invention is now as follows:

Anstatt die oben genannte Nitroleukobase in getrennten Operationen erst zu reduciren und nachher zu oxydiren, führe ich dieselbe durch einen Procefs direct in Rosanilin über.Instead of first reducing and reducing the above-mentioned nitro leuco base in separate operations to oxidize afterwards, I convert it directly into rosaniline by a process.

Zu dem Zweck behandle ich die Nitrobase mit Metallsalzen, welche auf die Nitrogruppe reducirend wirken und gleichzeitig Sauerstoff auf die Methangruppe übertragen.For this purpose I treat the Nitrobase with metal salts, which act on the Nitro group have a reducing effect and at the same time transfer oxygen to the methane group.

Ich erhitze z. B. einen Theil Paranitrodiamidotriphenylmethan mit zwei Theilen festen Eisenchlorürs unter Umrühren auf 160 bis i8o° so lange, bis eine homogene, bronzeglänzende Schmelze entstanden ist.I heat z. B. a part of paranitrodiamidotriphenylmethane with two parts of solid iron chloride, with stirring, to 160 to 180 ° long until a homogeneous, bronze-shining melt has formed.

Die Schmelze wird mit verdünnter Salzsäure ausgekocht, und das gelöste Fuchsin wird nach bekannten Methoden abgeschieden und gereinigt. The melt is boiled with dilute hydrochloric acid, and the dissolved fuchsin is after known methods deposited and cleaned.

Die Bildung des Rosanilins erfolgt nach der Gleichung:.The formation of the rosaniline takes place according to the equation:

C6 H1 - IVH1 C 6 H 1 - IVH 1

NO2 . C6 H, . CH NO 2 . C 6 H,. CH

C6 H1 · NH2 C 6 H 1 • NH 2

C19 H11 N3 + 2 O. C 19 H 11 N 3 + 2 O.

An Stelle des Eisenchlorürs kann man auch andere reducirenden Metallzalze, z. B. Zinnchlorür, anwenden.Instead of iron chlorine, other reducing metal salts can also be used, e.g. B. tin chloride, use.

Die gleiche Reaction läfst sich bei den Homologen des Nitrodiamidotriphenylmethans, welche man durch Condensation von Paranitrobittermandelöl mit Toluidin oder mit einem Gemenge von Anilin und Toluidin erhält, ausführen. The same reaction can be found with the homologues of nitrodiamidotriphenylmethane, which can be obtained by condensation of paranitro bitter almond oil with toluidine or with a Mixture of aniline and toluidine received, run.

Claims (1)

Patent-Anspruch:Patent claim: Die directe Ueberführung von Paranitrodiamidotriphenylmethan und seinen Homologen in Rosaniline durch Erhitzen mit reducirenden Metallsalzen.The direct conversion of paranitrodiamidotriphenylmethane and its homologues in rosaniline by heating with reducing metal salts. BERLIN. GEDRÜCKT IN DER REtCHSDRUCKEREI.BERLIN. PRINTED IN THE LEGAL PRINTING.
DENDAT16750D Process for the preparation of dyes of the rosaniline grater from Niiroleukobasen of triphenylmethane Active DE16750C (en)

Publications (1)

Publication Number Publication Date
DE16750C true DE16750C (en)

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT16750D Active DE16750C (en) Process for the preparation of dyes of the rosaniline grater from Niiroleukobasen of triphenylmethane

Country Status (1)

Country Link
DE (1) DE16750C (en)

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