CH145895A - Process for the preparation of 4-methyl-5.7-dichloro- (2) -thionaphten-4'-chloro-7'-methoxy- (2 ') -indolindigo. - Google Patents

Process for the preparation of 4-methyl-5.7-dichloro- (2) -thionaphten-4'-chloro-7'-methoxy- (2 ') -indolindigo.

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Publication number
CH145895A
CH145895A CH145895DA CH145895A CH 145895 A CH145895 A CH 145895A CH 145895D A CH145895D A CH 145895DA CH 145895 A CH145895 A CH 145895A
Authority
CH
Switzerland
Prior art keywords
methyl
chloro
methoxy
indolindigo
preparation
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 CH145895A publication Critical patent/CH145895A/en

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  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)

Description

  

  Verfahren zur Darstellung von     4-Methyl-fi.        7-dichlor-(2)-thionaphten-4'-chlor-7'-          methoxy-(2')-indolindigo.       Gegenstand dieses Patentes ist ein Ver  fahren zur Darstellung von 4-Methyl-5.7       diclilor-(2)-thionaphten-4'-chlor-7'-rnethoxy-          (2')-indolindigo,    welches dadurch gekennzeich  net ist, dass man     4-Methyl-5    .

       7-dichlor-3-oxy-          thionaphten    in Gegenwart eines     indifferenten     organischen Lösungsmittels mit einem reak  tionsfähigen     a-Derivat    des     4-Chlor-7-methoxy-          isatins    kondensiert.  



  <I>Beispiel:</I>  Man bereitet eine Lösung von     4-Chlor,-7-          rnethoxyisatin-a-chlorid    und kondensiert dieses  mit 23 Teilen     4-lYTethyl-5.7-dichlor-3-oxy-          thionaphten,    gelöst in 200 Teilen Chlorbenzol,  in der üblichen Weise. Der so erhaltene  Farbstoff ist ein     violettblaues    Pulver, das  sich in konzentrierter Schwefelsäure mit grün  blauer Farbe löst. Die Faser wird aus rot  gelber     Küpe    in echten marineblauen Tönen  gefärbt.



  Process for the preparation of 4-methyl-fi. 7-dichloro- (2) -thionaphthene-4'-chloro-7'-methoxy- (2 ') -indolindigo. The subject of this patent is a process for the preparation of 4-methyl-5.7 diclilor- (2) -thionaphten-4'-chloro-7'-methoxy- (2 ') - indolindigo, which is characterized in that one 4- Methyl-5.

       7-dichloro-3-oxythionaphthene condensed in the presence of an inert organic solvent with a reactive α-derivative of 4-chloro-7-methoxy-isatin.



  <I> Example: </I> A solution of 4-chloro, -7-methoxyisatin-a-chloride is prepared and this is condensed with 23 parts of 4-methyl-5,7-dichloro-3-oxythionaphthene, dissolved in 200 parts Chlorobenzene, in the usual way. The dye thus obtained is a violet-blue powder which dissolves in concentrated sulfuric acid with a green-blue color. The fiber is dyed from a red and yellow vat in real navy blue tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung von 4-Methyl- 5 . 7-diehlor-(2)- thionaphten -4'-ehlor- 7'-meth- oxy-(2')-indolindigo, dadurch gekennzeichnet, dass man 4-Methyl-5 . 7-diclrlor-3-oxythionaph- ten in Gegenwart eines indifferenten organi schen Lösungsmittels mit einem reaktions fähigen n-Derivat des 4-Chlor-7-methoxy- isatins kondensiert. PATENT CLAIM: Process for the preparation of 4-methyl-5. 7-diehlor- (2) - thionaphthene -4'-ehlor- 7'-methoxy- (2 ') - indolindigo, characterized in that 4-methyl-5. 7-dicloro-3-oxythionaph- ten condensed in the presence of an inert organic solvent with a reactive n-derivative of 4-chloro-7-methoxyisatin. Der so erhaltene Farb stoff ist ein violettblaues Pulver, das sich in konzentrierter Schwefelsäure mit grün blauer Farbe löst. Die Faser wird aus rot gelber Küpe in echten marineblauen Tönen gefärbt. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Kondensation in Chlorbenzol vornimmt. The dye obtained in this way is a violet-blue powder that dissolves in concentrated sulfuric acid with a green-blue color. The fiber is dyed from a red and yellow vat in real navy blue tones. SUBCLAIM: Process according to claim, characterized in that the condensation is carried out in chlorobenzene.
CH145895D 1928-04-07 1929-04-04 Process for the preparation of 4-methyl-5.7-dichloro- (2) -thionaphten-4'-chloro-7'-methoxy- (2 ') -indolindigo. CH145895A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE145895X 1928-04-07
CH143034T 1929-04-04

Publications (1)

Publication Number Publication Date
CH145895A true CH145895A (en) 1931-03-15

Family

ID=25714212

Family Applications (1)

Application Number Title Priority Date Filing Date
CH145895D CH145895A (en) 1928-04-07 1929-04-04 Process for the preparation of 4-methyl-5.7-dichloro- (2) -thionaphten-4'-chloro-7'-methoxy- (2 ') -indolindigo.

Country Status (1)

Country Link
CH (1) CH145895A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6218430B1 (en) 1998-08-24 2001-04-17 Ligand Pharmaceuticals Incorporated Vitamin D3 mimics

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6218430B1 (en) 1998-08-24 2001-04-17 Ligand Pharmaceuticals Incorporated Vitamin D3 mimics

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