CH148970A - Process for the preparation of a B-naphthylaminophenoxy fatty acid. - Google Patents

Process for the preparation of a B-naphthylaminophenoxy fatty acid.

Info

Publication number
CH148970A
CH148970A CH148970DA CH148970A CH 148970 A CH148970 A CH 148970A CH 148970D A CH148970D A CH 148970DA CH 148970 A CH148970 A CH 148970A
Authority
CH
Switzerland
Prior art keywords
acid
preparation
fatty acid
naphthylaminophenoxy
allowed
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
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
Publication of CH148970A publication Critical patent/CH148970A/en

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Darstellung einer     R-Naphtylaminophenogyfettsäure.            Irn    Hauptpatent ist ein Verfahren zur  Darstellung einer     ss-Naphtylaminophenoxy-          fettsäure    beschrieben, das dadurch     gekenn-          zeicInet    ist, dass man     2.5-Dioxynaphtalin-7-          sulfosäure,        Bisulfit    und     4-Anrinophenoxyessig-          aäure    aufeinander einwirken lässt.  



  Gegenstand vorliegender Erfindung ist nun  ein Verfahren zur Darstellung einer     R-Naphtyl-          aminophenoxyfettsäure,    dadurch gekennzeich  net, dass man 2 -     Oxynaphtalin    - 7 -     sulfosäure,          Bisulfit    und     4-Aminopherroxyessigsäure    auf  einander einwirken lässt.  



  Man kann die Reaktion entweder so vor  sich gehen lassen, dass man alle 3 Ausgangs  stoffe gleichzeitig miteinander reagieren lässt,  oder dass man zuerst das     Biaulfit    auf die     2-          Oxynaphtalin-7-sulfosäure    einwirken lässt und  hierauf die     4-Aminophenoxyessigsäure    zusetzt.  



  Der neue Körper soll als Zwischenprodukt  für die Herstellung von     Farbstoffen    Verwen  dung finden.  



  <I>Beispiel:</I>  24,6 Gewichtsteile     2-oxynaphtalin-7-sul-          fonsaures    Natrium werden mit 19,7 Gewichts-    teilen     4-aminophenoxyessigsaurem    Natrium in  500 Gewichtsteilen Wasser gelöst und mit  einer Lösung von 700 Gewichtsteilen 40  /o  iger     Natriumbisulfitlösung    20 Stunden unter  Rühren und     Rückfluss    gekocht. Sodann wird  wie üblich mit Salzsäure stark kongosauer  gemacht und die schweflige Säure wegge  kocht. Beim Erkalten scheidet sich die     7'-          Sulfo-2'-naphtyl-4-aminophenoxyessigsäure    als  feinkristallinisches Pulver ab. Die Ausbeute  ist fast theoretisch, das Endprodukt ist von  grosser Reinheit.



  Process for the preparation of an R-naphthylaminophenogy fatty acid. The main patent describes a process for the preparation of an β-naphthylaminophenoxy fatty acid, which is characterized in that 2,5-dioxynaphthalene-7-sulfonic acid, bisulfite and 4-anrinophenoxyacetic acid are allowed to act on one another.



  The present invention now relates to a process for the preparation of an R-naphthyl aminophenoxy fatty acid, characterized in that 2-oxynaphthalene-7-sulfonic acid, bisulfite and 4-aminopherroxyacetic acid are allowed to act on one another.



  The reaction can either be allowed to proceed in such a way that all 3 starting substances are allowed to react with one another at the same time, or that the biaulphite is first allowed to act on the 2-oxynaphthalene-7-sulphonic acid and then the 4-aminophenoxyacetic acid is added.



  The new body is to be used as an intermediate product for the manufacture of dyes.



  <I> Example: </I> 24.6 parts by weight of 2-oxynaphthalene-7-sulphonic acid sodium are dissolved with 19.7 parts by weight of 4-aminophenoxyacetic acid sodium in 500 parts by weight of water and a solution of 700 parts by weight of 40 / o iger sodium bisulfite solution boiled for 20 hours with stirring and reflux. Then, as usual, make the Congo acidic with hydrochloric acid and boil away the sulphurous acid. On cooling, the 7'-sulfo-2'-naphthyl-4-aminophenoxyacetic acid separates out as a finely crystalline powder. The yield is almost theoretical, the end product is of great purity.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung einer P-Naphtyl- aminophenoxyfettsäure, dadurch gekennzeich net, dass man 2-Oxynaphtalin-7-sulfosäure, Bisulfit und 4-Aminophenoxyessigsäure auf einander einwirken lässt. Die so erhaltene 7'-Sulfo- 2'-naphtyl-4- amirrophenoxyessigsäure stellt ein feinkristal linisches Pulver dar. PATENT CLAIM: A process for the preparation of a P-naphthyl aminophenoxy fatty acid, characterized in that 2-oxynaphthalene-7-sulfonic acid, bisulfite and 4-aminophenoxyacetic acid are allowed to act on one another. The 7'-sulfo-2'-naphthyl-4-amirrophenoxyacetic acid thus obtained is a fine-crystalline powder.
CH148970D 1929-02-18 1930-02-06 Process for the preparation of a B-naphthylaminophenoxy fatty acid. CH148970A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE148970X 1929-02-18
CH147162T 1930-02-06

Publications (1)

Publication Number Publication Date
CH148970A true CH148970A (en) 1931-08-15

Family

ID=25714989

Family Applications (1)

Application Number Title Priority Date Filing Date
CH148970D CH148970A (en) 1929-02-18 1930-02-06 Process for the preparation of a B-naphthylaminophenoxy fatty acid.

Country Status (1)

Country Link
CH (1) CH148970A (en)

Similar Documents

Publication Publication Date Title
CH148970A (en) Process for the preparation of a B-naphthylaminophenoxy fatty acid.
AT96802B (en) Process for opening up boron ores.
CH148971A (en) Process for the preparation of a B-naphthylaminophenoxy fatty acid.
CH128645A (en) Process for the preparation of the diazo compound of the 5th 8-dichloro-1-naphthylamine.
DE705315C (en) Process for the preparation of 1-methyl-4-chloro-5-oxynaphthalene-1-sulfonic acid
CH125476A (en) Process for the preparation of 6-methoxy-8-aminoquinoline.
CH150160A (en) Process for the preparation of an arylacetic acid.
CH147035A (en) Process for the production of a preparation suitable for preparing a solution of a nitrosodiazo compound of the diphenylamine series.
CH127705A (en) Process for the preparation of the diazo compound of 2.5-dichloro-4-methylaniline.
CH104101A (en) Process for the preparation of diallylcyanamide.
CH95947A (en) Process for the preparation of a derivative of 1.8.Dioxyanthraquinone.
CH157253A (en) Process for the production of a vat dye preparation.
CH132212A (en) Process for producing a solid diazoazo compound.
CH170768A (en) Process for the preparation of a substantive copper-containing azo dye.
CH132204A (en) Process for producing a solid diazoazo compound.
CH222974A (en) Process for the preparation of a mixed urea with solubilizing groups.
CH225494A (en) Process for the preparation of an acidic oxalic acid ester.
CH147162A (en) Process for the preparation of a B-naphthylaminophenoxy fatty acid.
CH205160A (en) Method for producing a capillary-active connection.
CH139078A (en) Process for the preparation of 4-methylamino-1-oxybenzenesulfate.
CH222975A (en) Process for the preparation of a mixed urea with solubilizing groups.
CH199959A (en) Process for the preparation of a 2-oxynaphthalene-4-sulfonic acid.
CH154695A (en) Process for the production of alumina.
CH153387A (en) Process for the preparation of an arylide of a 3-oxydiarylamine-5-carboxylic acid.
CH126127A (en) Process for the preparation of a thiobenzimidazole series gold compound.