CH173735A - Process for the preparation of a derivative of p-nitrobenzoyl acetic acid. - Google Patents

Process for the preparation of a derivative of p-nitrobenzoyl acetic acid.

Info

Publication number
CH173735A
CH173735A CH173735DA CH173735A CH 173735 A CH173735 A CH 173735A CH 173735D A CH173735D A CH 173735DA CH 173735 A CH173735 A CH 173735A
Authority
CH
Switzerland
Prior art keywords
acetic acid
derivative
nitrobenzoyl
preparation
nitrobenzoyl acetic
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH173735A publication Critical patent/CH173735A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C233/00—Carboxylic acid amides
    • C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C233/12—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by halogen atoms or by nitro or nitroso groups

Description

  

  Verfahren zur Herstellung eines Derivates der     p-Nitrobenzoylessigsäure.       Es wurde gefunden, dass man ein neues  Derivat der     p-Nitrobenzoylessigsäure    erhält,  wenn man auf 1     Mol        p-Nitroberizoylessigester       1     Mol        p-Aminobenzoylanilin    einwirken lässt.  Das neue Derivat der     p-Nitrobenzoylessigsäure     entspricht der Formel  
EMI0001.0008     
    und stellt ein hellgelbes kristallines Pulver  dar. Das neue Produkt vereinigt sich mit       5-Nitro-2-diazoanisol    in Substanz oder auf  einer geeigneten Grundlage, wie z.

   B. pflanz  liche Faser, zu einem echten gelben     Farbstoff.     <I>Beispiel:</I>  Man erwärmt ein Gemisch von 23,7 Teilen       p-Nitrobenzoylessigester    und 200 Teilen     Xylol     in einem mit absteigendem     Rührer        versehenen     Rührgefäss auf 130-140  . Bei dieser Tem  peratur trägt man 21,2 Teile     p-Aminobenzoyl-          anilin    ein. Es setzt Alkoholabspaltung ein,  der     abdestilliert    wird.

   Man kondensiert etwa    5 Stunden, treibt dann das     Xylol    mit Wasser  dampf ab und löst den Rückstand in ver  dünnter     Natriiimhydroxydlösung,    filtriert und  säuert aus. Zur Reinigung kann das Produkt  aus Eisessig umkristallisiert werden.



  Process for the preparation of a derivative of p-nitrobenzoyl acetic acid. It has been found that a new derivative of p-nitrobenzoyl acetic acid is obtained if 1 mole of p-aminobenzoylaniline is allowed to act on 1 mole of p-nitroberizoyl acetic ester. The new derivative of p-nitrobenzoyl acetic acid corresponds to the formula
EMI0001.0008
    and represents a light yellow crystalline powder. The new product combines with 5-nitro-2-diazoanisole in substance or on a suitable basis, such as.

   B. vegetable fiber, to a real yellow dye. <I> Example: </I> A mixture of 23.7 parts of p-nitrobenzoyl acetic ester and 200 parts of xylene is heated to 130-140 in a stirred vessel equipped with a descending stirrer. At this temperature, 21.2 parts of p-aminobenzoylaniline are entered. Alcohol is split off, which is distilled off.

   The condensation is carried out for about 5 hours, then the xylene is driven off with steam and the residue is dissolved in dilute sodium hydroxide solution, filtered and acidified. For cleaning, the product can be recrystallized from glacial acetic acid.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Derivates der p-Nitrobenzoylessigsäure, da durch gekennzeichnet, dass man auf 1 Mol p-Nitrobenzoylessigester 1 Mol p-Aminoben- zoylanilin einwirken lässt. Das neue Derivat der p-Nitrobenzoylessigsäure entspricht der Formel EMI0002.0001 und stellt ein hellgelbes kristallines Pulver dar. Das neue Produkt vereinigt sich mit 5-Nitro-2-diazoanisol in Substanz oder auf einer geeigneten Grundlage, wie z. B. pflanz liche Faser, zu einem echten gelben Farbstoff. Claim: Process for the preparation of a new derivative of p-nitrobenzoyl acetic acid, characterized in that 1 mol of p-aminobenzoylaniline is allowed to act on 1 mole of p-nitrobenzoyl acetic ester. The new derivative of p-nitrobenzoyl acetic acid corresponds to the formula EMI0002.0001 and represents a light yellow crystalline powder. The new product combines with 5-nitro-2-diazoanisole in substance or on a suitable basis, such as. B. vegetable fiber, to a real yellow dye.
CH173735D 1934-01-23 1934-01-23 Process for the preparation of a derivative of p-nitrobenzoyl acetic acid. CH173735A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH173735T 1934-01-23

Publications (1)

Publication Number Publication Date
CH173735A true CH173735A (en) 1934-12-15

Family

ID=4424935

Family Applications (1)

Application Number Title Priority Date Filing Date
CH173735D CH173735A (en) 1934-01-23 1934-01-23 Process for the preparation of a derivative of p-nitrobenzoyl acetic acid.

Country Status (1)

Country Link
CH (1) CH173735A (en)

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