CH136572A - Process for the preparation of 4-6-dimethyl-5-chloro-2-2'-thionaphten-5'-7'-dichloroindolindigo. - Google Patents

Process for the preparation of 4-6-dimethyl-5-chloro-2-2'-thionaphten-5'-7'-dichloroindolindigo.

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Publication number
CH136572A
CH136572A CH136572DA CH136572A CH 136572 A CH136572 A CH 136572A CH 136572D A CH136572D A CH 136572DA CH 136572 A CH136572 A CH 136572A
Authority
CH
Switzerland
Prior art keywords
chloro
dimethyl
preparation
thionaphten
dichloroindolindigo
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 CH136572A publication Critical patent/CH136572A/en

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Description

  

      Verfahren    zur Darstellung des     4-6-Dimethyl-ö-chlor-2-2'-thionaphten-h'-          7'-dichlor        indolindigos.            (xegenstand    der vorliegenden     Erfindung     ist ein Verfahren zur Darstellung des 4-6       Dimethyl-5-chlor-2-2'-thionaphten-5'-7'dicblor-          indolindigos,    welches dadurch gekennzeichnet  ist; dass man das     4-6-Dimethyl-5-chlor-3-          oxythionaphten    mit     5-7-Dichlorisatinchlorid     kondensiert.  



  <I>Beispiel:</I>  22 Gewichtsteile     5,7-Dichlorisatin    werden       finit    22 Gewichtsteilen     Phosphorpentachlorid    in  100 Gewichtsteilen Benzol bis zur Beendigung  der     Salzsäureer)twicklung    am     Rückflusskühler     erhitzt. Nach dem Erkalten wird eine Lösung  von 21 Gewichtsteilen     4.6-Dimethyl-5-chlor-          Fi-oxythionaphten    in 400 Gewichtsteilen Benzol  eingerührt. Die     Farbstoffausscheidung    beginnt  sofort. Nach 3 Stunden wird abgesaugt und  mit Benzol nachgewaschen.

      Der 4. 6 -     Dimethyl    - 5-     chlor-2.    2'-5' .     7'-di-          chlor-thionaphthenindolindigo    stellt ein blau  violettes Pulver dar. Er färbt auf Baumwolle  aus goldgelber     Küpe        eire    Violett von durch  weg guten Echtheitseigenschaften.



      Process for the preparation of 4-6-dimethyl-ö-chloro-2-2'-thionaphten-h'- 7'-dichloro indolindigo. (The subject of the present invention is a process for the preparation of 4-6 dimethyl-5-chloro-2-2'-thionaphthene-5'-7'dicblorindolindigos, which is characterized; that the 4-6-dimethyl- 5-chloro-3-oxythionaphthene condensed with 5-7-dichloroisatin chloride.



  <I> Example: </I> 22 parts by weight of 5,7-dichloroisatin are finitely heated to 22 parts by weight of phosphorus pentachloride in 100 parts by weight of benzene until the development of hydrochloric acid has ended in the reflux condenser. After cooling, a solution of 21 parts by weight of 4,6-dimethyl-5-chloro-fi-oxythionaphthene is stirred into 400 parts by weight of benzene. The dye excretion begins immediately. After 3 hours, it is suctioned off and washed with benzene.

      The 4th 6 - dimethyl - 5-chloro-2. 2'-5 '. 7'-dichloro-thionaphthenindolindigo is a blue-violet powder. It dyes cotton from a golden-yellow vat a violet with good fastness properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung des 4-6-Dime- thyl - 5 - chlor - 2 - 2'-thionaphten-5'-7'-dichlorin- dolindigos, dadurch gekennzeichnet, dass man das 4-6-Dimethyl-5-chlor-3-oxythionaphten mit 5-7-Dichlorisatinchlorid kondensiert. Der 4.6-Dimethyl-5-chlor-2 . 2'-5'. 7'-dichlor- thionapthenindolindigo stellt ein blauviolettes Pulver dar. Er färbt auf Baumwolle aus goldgelber Küpe ein Violett von durchweg guten Echtheitseigenschaften. PATENT CLAIM: Process for the preparation of 4-6-dimethyl - 5 - chloro - 2 - 2'-thionaphten-5'-7'-dichlorin- dolindigo, characterized in that the 4-6-dimethyl-5-chloro -3-oxythionaphthene condensed with 5-7-dichloroisatin chloride. The 4,6-dimethyl-5-chloro-2. 2'-5 '. 7'-dichlorothionapthenindolindigo is a blue-violet powder. On cotton from a golden yellow vat, it dyes a violet with consistently good fastness properties.
CH136572D 1926-05-29 1927-05-23 Process for the preparation of 4-6-dimethyl-5-chloro-2-2'-thionaphten-5'-7'-dichloroindolindigo. CH136572A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE134946X 1926-05-29
CH134946T 1927-05-23

Publications (1)

Publication Number Publication Date
CH136572A true CH136572A (en) 1929-11-15

Family

ID=25712411

Family Applications (2)

Application Number Title Priority Date Filing Date
CH136572D CH136572A (en) 1926-05-29 1927-05-23 Process for the preparation of 4-6-dimethyl-5-chloro-2-2'-thionaphten-5'-7'-dichloroindolindigo.
CH136571D CH136571A (en) 1926-05-29 1927-05-23 Process for the preparation of 4-5-dimethyl-6-chloro-4'-methyl-6'-chlorothioindigo.

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH136571D CH136571A (en) 1926-05-29 1927-05-23 Process for the preparation of 4-5-dimethyl-6-chloro-4'-methyl-6'-chlorothioindigo.

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CH (2) CH136572A (en)

Also Published As

Publication number Publication date
CH136571A (en) 1929-11-15

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