CH151569A - Process for the preparation of a dye of the thioindigo series. - Google Patents

Process for the preparation of a dye of the thioindigo series.

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Publication number
CH151569A
CH151569A CH151569DA CH151569A CH 151569 A CH151569 A CH 151569A CH 151569D A CH151569D A CH 151569DA CH 151569 A CH151569 A CH 151569A
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CH
Switzerland
Prior art keywords
dye
preparation
thioindigo series
chloro
methyl
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 CH151569A publication Critical patent/CH151569A/en

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Description

  

  Verfahren zur Darstellung eines     Farbstoffes    der     Thioindigoreihe.       Gegenstand des vorliegenden Zusatzpaten  tes ist ein Verfahren zur Darstellung von 4  Methyl-6-4'-dichlorbisthionaphtenindigo, wel  ches dadurch gekennzeichnet ist, dass ein  reaktionsfähiges     2-Derivat    des     4-Methyl-6-          chlor-2.3-diketodihydrothionaphtenchinons    mit       4-Clilor-3-oxythionaphten    kondensiert wird.  



  Der so erhaltene     Farbstoff    ist ein rotes  Pulver und färbt Baumwolle in klaren roten  Tönen von guten Echtheitseigenschaften an.  <I>Beispiel:</I>  32 Gewichtsteile     4-Methyl    - 6 -chlor- 2 . 3       diketödihydrothiotiaphtenchirion-2-(p-dimethyl-          amino)-anil    werden mit 18,5 Gewichtsteilen       4-Chlor-3-oxythionaphten    in 600 Gewichts  teilen Eisessig zum Sieden erhitzt. Der nach  dem Erkalten abgesaugte und neutral ge-         waschene-        Farbstoff    färbt Baumwolle in  klaren roten Tönen von guten Echtheits  eigenschaften an.



  Process for the preparation of a dye of the thioindigo series. The subject of the present additional patent is a process for the preparation of 4 methyl-6-4'-dichlorobisthionaphthene indigo, wel ches is characterized in that a reactive 2-derivative of 4-methyl-6-chloro-2,3-diketodihydrothionaphtenquinone with 4-Clilor- 3-oxythionaphten is condensed.



  The dye thus obtained is a red powder and dyes cotton in clear red shades with good fastness properties. <I> Example: </I> 32 parts by weight of 4-methyl-6-chloro-2. 3 diketödihydrothiotiaphtenchirion-2- (p-dimethyl-amino) -anil are heated to the boil with 18.5 parts by weight of 4-chloro-3-oxythionaphtene in 600 parts by weight of glacial acetic acid. The dye, which is sucked off after cooling and washed neutrally, dyes cotton in clear red shades with good fastness properties.

Claims (1)

- PATENTANSPRUCH: Verfahren zur Darstellung von 4-Methyl- 6-4'-dichlorbisthionaphtenindigo, dadurch ge kennzeichnet, dass ein reaktionsfähiges 2- Derivat des 4 - Methyl - 6 - chlor- 2. 3 - diketo- dihydrothionaphtenchinons mit 4-Chlor-3-ogy- thionaphten kondensiert wird. Der so erhaltene Farbstoff ist ein rotes Pulver und färbt Baumwolle in klaren roten Tönen von guten Echtheitseigenschaften an. - PATENT CLAIM: Process for the preparation of 4-methyl-6-4'-dichlorobisthionaphthene indigo, characterized in that a reactive 2-derivative of 4-methyl-6-chloro-2. 3-diketo-dihydrothionaphtenquinones with 4-chloro-3 -ogy- thionaphthene is condensed. The dye thus obtained is a red powder and dyes cotton in clear red shades with good fastness properties.
CH151569D 1929-05-18 1930-05-14 Process for the preparation of a dye of the thioindigo series. CH151569A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE151569X 1929-05-18
CH148503T 1930-05-14

Publications (1)

Publication Number Publication Date
CH151569A true CH151569A (en) 1931-12-15

Family

ID=25715228

Family Applications (1)

Application Number Title Priority Date Filing Date
CH151569D CH151569A (en) 1929-05-18 1930-05-14 Process for the preparation of a dye of the thioindigo series.

Country Status (1)

Country Link
CH (1) CH151569A (en)

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