CH193341A - Process for the preparation of 3-nitro-4-dodecylaniline. - Google Patents

Process for the preparation of 3-nitro-4-dodecylaniline.

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Publication number
CH193341A
CH193341A CH193341DA CH193341A CH 193341 A CH193341 A CH 193341A CH 193341D A CH193341D A CH 193341DA CH 193341 A CH193341 A CH 193341A
Authority
CH
Switzerland
Prior art keywords
dodecylaniline
nitro
preparation
parts
mixture
Prior art date
Application number
Other languages
German (de)
Inventor
Limited Imperial Ch Industries
Original Assignee
Ici Ltd
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 Ici Ltd filed Critical Ici Ltd
Publication of CH193341A publication Critical patent/CH193341A/en

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Description

       

  Verfahren zur Herstellung von     3-Nitro-4-dodecylanilin.       Die vorliegende Erfindung     betrifft    ein  Verfahren zur Herstellung von     3-Nitro-4-          dodecylanilin,    welches     da.durcb    .gekennzeich  net ist,     class    man     p-Dodecylanilin    nitriert.     Die     N     itrierung    kann zum Beispiel durch Behand  lung mit einem     Gemisch    von Salpeter- und  Schwefelsäure ausgeführt werden.  



       3-Nitro-4-dodecylanilin    ist eine neue Ver  bindung, eine orangefarbige     kristallinische     Substanz mit einem Schmelzpunkt von 68   C.  Sie stellt ein wertvolles     Farbstoffzwischen-          produkt    dar.  



  <I>Beispiel:</I>  52 Teile     p-Dodecylanilin    werden     in        1=870     Teilen einer 99     %igen    Schwefelsäure gelöst,  die     Lösung    wird auf 0 bis 2   C gekühlt.

       Ein     Gemisch von 14 Teilen 92%iger Salpeter  säure und 40 Teilen 99     %iger    Schwefelsäure    wird     unter    5   C nach     und,    nach zugesetzt,     die          Temperatur    wird während zwei     Stunden    auf  5   C gehalten,     das    Gemisch auf     Eis    gegossen,  mit Wasser gewaschen     und        mit        Salmiak        be-          handelt,    filtriert,

   mit     Wasser        gewaschen    und       getrocknet.  



  Process for the preparation of 3-nitro-4-dodecylaniline. The present invention relates to a process for the preparation of 3-nitro-4-dodecylaniline, which is denoted because p-dodecylaniline is nitrated. The nitration can be carried out, for example, by treatment with a mixture of nitric and sulfuric acids.



       3-Nitro-4-dodecylaniline is a new compound, an orange crystalline substance with a melting point of 68 C. It is a valuable intermediate dye product.



  <I> Example: </I> 52 parts of p-dodecylaniline are dissolved in 1 = 870 parts of 99% strength sulfuric acid, the solution is cooled to 0 to 2 ° C.

       A mixture of 14 parts of 92% strength nitric acid and 40 parts of 99% strength sulfuric acid is gradually added below 5 ° C. The temperature is kept at 5 ° C. for two hours, the mixture is poured onto ice, washed with water and with ammonia treated, filtered,

   washed with water and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von 3-Nitro- 4-dodecylanilin, .dadurch gekennzeichnet, dass man p-Dodecylanilin nitriert. 3-Nitro-4-.dodecylaailin ist eine orange farbige, kristallinische Substanz, Schmelz- punkt 68 C. PATENT CLAIM: Process for the production of 3-nitro-4-dodecylaniline, characterized in that p-dodecylaniline is nitrated. 3-Nitro-4-.dodecylaailin is an orange colored, crystalline substance, melting point 68 C.
CH193341D 1936-01-15 1937-01-15 Process for the preparation of 3-nitro-4-dodecylaniline. CH193341A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB193341X 1936-01-15

Publications (1)

Publication Number Publication Date
CH193341A true CH193341A (en) 1937-10-15

Family

ID=10127601

Family Applications (1)

Application Number Title Priority Date Filing Date
CH193341D CH193341A (en) 1936-01-15 1937-01-15 Process for the preparation of 3-nitro-4-dodecylaniline.

Country Status (1)

Country Link
CH (1) CH193341A (en)

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