CH282627A - Process for the preparation of an indolyl-diphenylmethane dye. - Google Patents
Process for the preparation of an indolyl-diphenylmethane dye.Info
- Publication number
- CH282627A CH282627A CH282627DA CH282627A CH 282627 A CH282627 A CH 282627A CH 282627D A CH282627D A CH 282627DA CH 282627 A CH282627 A CH 282627A
- Authority
- CH
- Switzerland
- Prior art keywords
- indolyl
- dye
- product obtained
- preparation
- diphenylmethane dye
- Prior art date
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
- C09B11/00—Diaryl- or thriarylmethane dyes
- C09B11/04—Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
- C09B11/26—Triarylmethane dyes in which at least one of the aromatic nuclei is heterocyclic
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 278943. Verfahren zur Herstellung eines Indolyl-diphenvlmethanfarbstoffes. Gegenstand des vorliegenden Zusatzpaten tes ist ein Verfahren zur Herstellung eines Indolyl-diphenylmethanfarbstoffes, welches dadurch gekennzeichnet ist, dass man 4,4'-Di- chlorbenzophenon-3,3'-disulfosäure mit 1,4,6- Trimethyl-2-chlorphenylindol in etwa mole kularem Verhältnis kondensiert und das erhal tene Kondensationsprodukt mit einem Über schuss von p-Aminodiphenyläther umsetzt.
<I>Beispiel:</I> 35 Gewichtsteile 4,4'-dichlorbenzophenon- 3,3'-disulfosaures Natrium werden mit 14,5 Gewichtsteilen 1,4,6-Trimethyl-2-chlorphenyl- indol in 100 Gewichtsteilen Eisessig bei Gegen wart von Chlorzink 20 Stunden bei 100 C kondensiert. Das rote Zwischenprodukt wird durch Eingiessen in Wasser isoliert und mit 100 Gewichtsteilen p-Aminodiphenyläther 5 Stunden bei l00 C verschmolzen.
Die Farb- stoffschmelze wird zur Entfernung des über schüssigen p-Aminodiphenyläthers mit Salz säure ausgerührt und der gebildete Farbstoff mittels Natriumcarbonat gelöst und mit Koch salz ausgesalzen.
Das so erhaltene Produkt stellt ein violett glänzendes Pulver dar, das Wolle und Seide in blauen Tönen färbt, die sich durch eine, gute Lichtechtheit und sehr ,gute Schweiss- und Seewasserechtheiten auszeichnen.
Additional patent to main patent No. 278943. Process for the production of an indolyl-diphenylmethane dye. The subject of the present additional patent is a process for the production of an indolyl-diphenylmethane dye, which is characterized in that 4,4'-dichlorobenzophenone-3,3'-disulfonic acid with 1,4,6-trimethyl-2-chlorophenylindole in about a molecular ratio condensed and the condensation product obtained is reacted with an excess of p-aminodiphenyl ether.
<I> Example: </I> 35 parts by weight of 4,4'-dichlorobenzophenone-3,3'-disulfonic acid sodium are mixed with 14.5 parts by weight of 1,4,6-trimethyl-2-chlorophenyl indole in 100 parts by weight of glacial acetic acid at counter was condensed by zinc chloride for 20 hours at 100 C. The red intermediate is isolated by pouring into water and fused with 100 parts by weight of p-aminodiphenyl ether at 100 ° C. for 5 hours.
To remove the excess p-aminodiphenyl ether, the molten dye is stirred with hydrochloric acid and the dye formed is dissolved using sodium carbonate and salted out with sodium chloride.
The product obtained in this way is a shimmering violet powder that dyes wool and silk in blue tones, which are characterized by good lightfastness and very, good sweat and sea water fastnesses.
Claims (1)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE282627X | 1949-04-23 | ||
DE10649X | 1949-06-01 | ||
CH278943T | 1949-06-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH282627A true CH282627A (en) | 1952-04-30 |
Family
ID=27178132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH282627D CH282627A (en) | 1949-04-23 | 1949-06-24 | Process for the preparation of an indolyl-diphenylmethane dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH282627A (en) |
-
1949
- 1949-06-24 CH CH282627D patent/CH282627A/en unknown
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