CH146444A - Process for the preparation of 5.6.7-trichloro- (2) -thionaphten-4'-chloro-7'-methoxy- (2 ') -indole-indigo. - Google Patents

Process for the preparation of 5.6.7-trichloro- (2) -thionaphten-4'-chloro-7'-methoxy- (2 ') -indole-indigo.

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Publication number
CH146444A
CH146444A CH146444DA CH146444A CH 146444 A CH146444 A CH 146444A CH 146444D A CH146444D A CH 146444DA CH 146444 A CH146444 A CH 146444A
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CH
Switzerland
Prior art keywords
trichloro
chloro
thionaphten
methoxy
indigo
Prior art date
Application number
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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 CH146444A publication Critical patent/CH146444A/en

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Description

  

  Verfahren zur Darstellung von     5.6.7-Trichlor-(2)-thionaphteii-4'-chlor-          7   <B>9</B>     .mothoxy-(2')-.indol-indigo.       Gegenstand dieses Patentes ist ein Ver  fahren zur Darstellung von     5.6.7-Trichlor-          (2)-thionaphten-4'-chlor-7'-methoxy-    (2')     -indol-          indigo,    welches dadurch gekennzeichnet ist,  dass man     5.6.7-Trichlor-3-oxy-thionaphten    in  Gegenwart eines     indifferenten    organischen  Lösungsmittels mit einem reaktionsfähigen       a-Derivat    des     4-Chlor-7-methoxy-isatins    kon  densiert.  



  <I>Beispiel:</I>  Mai) bereitet eine Lösung von     4-Chlor-7-          methoxy-isatin-a-chlorid    und kondensiert  dieses mit 25 Teilen     5.6.7-Trichlor-3-oxy-          ihionaphten,    gelöst in 200 Teilen Chlorbenzol  in der üblichen Weise. Der so erhaltene  Farbstoff löst sich in konzentrierter Schwefel  säure mit blaugrüner Farbe. Die     Baumwoll-          faser    wird aus orangegelber     Hydrosulfitküpe     rein blau angefärbt. Die Farbe ist     grünsti-          chiger    als die des     Farbstoffes    des Zusatz  patentes Nr. 145895.



  Process for the preparation of 5.6.7-trichloro- (2) -thionaphteii-4'-chloro-7 <B> 9 </B> .mothoxy- (2 ') -. Indole-indigo. The subject of this patent is a process for the preparation of 5.6.7-trichloro (2) -thionaphten-4'-chloro-7'-methoxy- (2 ') -indole indigo, which is characterized in that one 5.6. 7-Trichloro-3-oxy-thionaphthene condenses in the presence of an inert organic solvent with a reactive α-derivative of 4-chloro-7-methoxy-isatin.



  <I> Example: </I> Mai) prepares a solution of 4-chloro-7-methoxy-isatin-a-chloride and condenses this with 25 parts of 5.6.7-trichloro-3-oxy-ihionaphten, dissolved in 200 parts Chlorobenzene in the usual way. The dye thus obtained dissolves in concentrated sulfuric acid with a blue-green color. The cotton fiber is dyed pure blue from an orange-yellow hydrosulfite vat. The color is greener than that of the dye of the additional patent no. 145895.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung von 5.6.7- Trichlor-(2)-thionaphten-4'-chlor- V-methoxy- (2')-indol-indigo, dadurch gekennzeichnet, dass man 5.6.7-Trichlor-3-oxy-thionaphten in Gegenwart eines indifferenten organischen Lösungsmittels mit einem reaktionsfähigen a-Derivat des 4-Chlor-7-metlioxy-isatiiis kon densiert. Der so erhaltene Farbtoff löst sich in kon zentrierter Schwefelsäure mit blaugrüner Farbe. Die Baumwollfaser wird aus orange gelbe: Hydrosulfitküpe rein blau angefärbt. PATENT CLAIM: Process for the preparation of 5.6.7-trichloro- (2) -thionaphten-4'-chloro-V-methoxy- (2 ') -indole-indigo, characterized in that 5.6.7-trichloro-3-oxy -thionaphten condenses in the presence of an inert organic solvent with a reactive α-derivative of 4-chloro-7-metlioxy-isatiiis. The dye thus obtained dissolves in concentrated sulfuric acid with a blue-green color. The cotton fiber is dyed from orange yellow: hydrosulfite vat pure blue. Die Farbe ist grünstichiger als die des Farb stoffes des Zusatzpatentes Nr. 145895. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Kondensation in Chlorbenzol vornimmt. The color is greener than that of the dye of the additional patent no. 145895. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that the condensation is carried out in chlorobenzene.
CH146444D 1928-04-07 1929-04-04 Process for the preparation of 5.6.7-trichloro- (2) -thionaphten-4'-chloro-7'-methoxy- (2 ') -indole-indigo. CH146444A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE146444X 1928-04-07
CH143034T 1929-04-04

Publications (1)

Publication Number Publication Date
CH146444A true CH146444A (en) 1931-04-15

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ID=25714218

Family Applications (1)

Application Number Title Priority Date Filing Date
CH146444D CH146444A (en) 1928-04-07 1929-04-04 Process for the preparation of 5.6.7-trichloro- (2) -thionaphten-4'-chloro-7'-methoxy- (2 ') -indole-indigo.

Country Status (1)

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CH (1) CH146444A (en)

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