CH238268A - Process for the preparation of a new dye of the anthraquinone series. - Google Patents

Process for the preparation of a new dye of the anthraquinone series.

Info

Publication number
CH238268A
CH238268A CH238268DA CH238268A CH 238268 A CH238268 A CH 238268A CH 238268D A CH238268D A CH 238268DA CH 238268 A CH238268 A CH 238268A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
anthraquinone series
parts
new dye
Prior art date
Application number
Other languages
French (fr)
Inventor
Sa Sandoz
Original Assignee
Sa Sandoz
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 Sa Sandoz filed Critical Sa Sandoz
Publication of CH238268A publication Critical patent/CH238268A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/16—Amino-anthraquinones
    • C09B1/20—Preparation from starting materials already containing the anthracene nucleus
    • C09B1/26—Dyes with amino groups substituted by hydrocarbon radicals
    • C09B1/32—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups
    • C09B1/34—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups sulfonated
    • C09B1/343—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups sulfonated only sulfonated in the anthracene nucleus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  <B>Brevet</B>     additionnel        subordonné    au brevet principal no 236390.    Procédé de préparation d'un nouveau colorant de la série     anthraquinonique.            Le    présent brevet a pour objet un pro  cédé de préparation -d'un nouveau colorant de  la série     anthraquinonique,    selon lequel on  condense l'acide     1-amino-2,4-dibromauthra-          quinone-6-,sulfonique    avec la     3-(méthylacétyl-          amino)

  -aniline    et     traite    le colorant     monosul-          foné    ainsi obtenu à chaud avec un sulfite.  



       Le    colorant ainsi préparé     correspond    à la  formule     suivante:     
EMI0001.0016     
    et teint les     fibres        animales    en bleu verdâtre,  ayant -de bonnes propriétés.

           Exemple:     On     chauffe    ensemble pendant 20     heures     à 80 : 10 parties de     1-amino-2,4-,dibrom-          anthraquinone    - 6 -     sulfonate    -de potassium,  7,3 parties de     3-(méthylacétylamino)-aniline,     4,8 parties de     bicarbonate    ,de sodium, 0,2 par  tie de poudre de cuivre, 50 parties d'eau et  15     parties.    d'alcool.

   On sépare le colorant       monosulfoné    formé et on le traite au     sulfite     pour introduire, à la     place    -du brome qui s'y  trouve, un groupe     sulfonique    en     position    2.  Cette opération se fait par     exemple    ainsi:  On chauffe pendant quelques heures, en vase  ouvert ou fermé, entre 100 et 140 : 10 par  ties .du colorant     monosulfoné,    20 parties de  phénol, 20     parties    d'une     solution    de sulfite  de sodium     35-40%    en poids.

   Quand la ré  action est terminée,' on chasse le phénol à la  vapeur d'eau, on     filtre    la     solution    bleue à  chaud, pour éliminer les produits     insolubles     éventuels, on précipite le colorant dis     ulfoné     par     adjonction    de sel et filtre le colorant qui  s'est séparé. .      Le colorant ainsi obtenu correspond à la       formule     
EMI0002.0002     
    et teint les fibres animales en bleu verdâtre.  ayant de bonnes     propriétés.  



  Additional <B> Patent </B> subject to main patent No. 236390. Process for preparing a new dye of the anthraquinone series. The present patent relates to a process for the preparation of a new dye of the anthraquinone series, according to which 1-amino-2,4-dibromauthraquinone-6-, sulfonic acid is condensed with 3- ( methylacetylamino)

  -aniline and treats the monosulfonate dye thus obtained hot with a sulfite.



       The dye thus prepared corresponds to the following formula:
EMI0001.0016
    and dyes the animal fibers greenish blue, having good properties.

           Example: Heated together for 20 hours at 80: 10 parts of 1-amino-2,4-, dibrom- anthraquinone - 6 - potassium sulfonate, 7.3 parts of 3- (methylacetylamino) -aniline, 4.8 parts of bicarbonate, sodium, 0.2 parts of copper powder, 50 parts of water and 15 parts. alcohol.

   The monosulfonated dye formed is separated and treated with sulfite to introduce, in place of the bromine which is therein, a sulfonic group in position 2. This operation is done for example as follows: It is heated for a few hours, in a vase open or closed, between 100 and 140: 10 parts of monosulfonated dye, 20 parts of phenol, 20 parts of sodium sulfite solution 35-40% by weight.

   When the reaction is complete, the phenol is driven off with water vapor, the blue solution is filtered hot, to remove any insoluble products, the dissolved dye is precipitated by adding salt and the dye which s 'is separated. . The dye thus obtained corresponds to the formula
EMI0002.0002
    and dyes the animal fibers a greenish blue. having good properties.

Claims (1)

REVENDICATION Procédé de préparation d'un colorant de la série anthraquinonique, selon lequel on con- dense l'acide l-amino-2,4--dibromanthraqui- none-6-sulfonique avec la 3-(méthylacétyl- a.mino)-a.niline et traite à chaud le colorant monosulfoné ainsi obtenu avec un sulfite. Ire nouveau colorant correspond à 1_a for- mule EMI0002.0012 et teint les fibres animales en bleu verdâtre, ayant de bonnes propriétés. CLAIM Process for preparing a dye of the anthraquinone series, according to which 1-amino-2,4-dibromanthraquinone-6-sulfonic acid is condensed with 3- (methylacetyl-a.mino) - a.niline and heat-treats the monosulfonated dye thus obtained with a sulfite. 1st new colorant corresponds to 1_a formula EMI0002.0012 and dyes the animal fibers greenish blue, having good properties.
CH238268D 1943-07-16 1943-07-16 Process for the preparation of a new dye of the anthraquinone series. CH238268A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH238268T 1943-07-16
CH236390T 1943-07-16

Publications (1)

Publication Number Publication Date
CH238268A true CH238268A (en) 1945-06-30

Family

ID=25728100

Family Applications (1)

Application Number Title Priority Date Filing Date
CH238268D CH238268A (en) 1943-07-16 1943-07-16 Process for the preparation of a new dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH238268A (en)

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