CH148686A - Process for the preparation of a dye of the anthraquinone series. - Google Patents
Process for the preparation of a dye of the anthraquinone series.Info
- Publication number
- CH148686A CH148686A CH148686DA CH148686A CH 148686 A CH148686 A CH 148686A CH 148686D A CH148686D A CH 148686DA CH 148686 A CH148686 A CH 148686A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- preparation
- anthraquinone series
- series
- condensation product
- 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
- C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
- C09B1/16—Amino-anthraquinones
- C09B1/20—Preparation from starting materials already containing the anthracene nucleus
- C09B1/26—Dyes with amino groups substituted by hydrocarbon radicals
- C09B1/28—Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl or cyclo alkyl groups
- C09B1/30—Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl or cyclo alkyl groups sulfonated
- C09B1/303—Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl or cyclo alkyl groups sulfonated only sulfonated in the anthracene nucleus
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 142743. y Verfahren zur Herstellung eines Farbstoffes der Anthrachinonreihe. Es wurde gefunden, dass man einen ent- sulfierten Farbstoff der Anthrachinonreihe erhält, wenn man die Leukoverbindung des 1.5-dioxy-4.8-dimethyldiaminoanthra- chinon-2. 6-disulfosauren Natriums in wäs- serigem Medium mit Ammoniak erhitzt,
wobei sehr wahrscheinlich 2 Mol Ammoniak mit einem Mol des obigen Anthrachinon- derivates kondensieren, und das so erhaltene Kondensationsprodukt zum Anthrachinon- derivat oxydiert.
Der so erhaltene Farbstoff stellt ein dunk les Pulver dar und löst sich in organischen Lösungsmitteln mit blauer Farbe auf. Er färbt Aceta,tseide nach geeigneter Verpastung in blauen Tönen an. <I>Beispiel:</I> 5,2 Teile des 1.5-dioxy-4.8-dimethyl- diaminoanthrachinon-2.6-disulfosauren Na triums werden mit 6 Teilen Natriumhydro- sulfit in 25 Volumteilen wässeriger 24 % iger Ammoniaklösung fünf Stunden auf 100 im geschlossenen Gefäss erhitzt.
Man filtriert, wäscht. heiss aus und erhält. beim Trocknen ein Kondensationsprodukt, welches durch Erhitzen an der Luft oxydiert wird, sich dann in Schwefelsäure mit gelber und in E ssigsäureäthylester mit blauer Farbe löst.
ieses Kondensationsprodukt entsprichl D f %-vahrscheinlich dem 1-Oxy-4-methylamino-- 5. 8-diaminoanthrachinon.
Additional patent to main patent no. 142743. y Process for the production of a dye of the anthraquinone series. It has been found that a desulfurized dye of the anthraquinone series is obtained if the leuco compound of 1,5-dioxy-4,8-dimethyldiaminoanthraquinone-2. 6-disulfonate of sodium heated in an aqueous medium with ammonia,
2 moles of ammonia very likely condense with one mole of the above anthraquinone derivative, and the condensation product thus obtained is oxidized to the anthraquinone derivative.
The dye thus obtained is a dark powder and dissolves in organic solvents with a blue color. It stains Aceta silk in blue tones after suitable pasting. <I> Example: </I> 5.2 parts of 1.5-dioxy-4.8-dimethyl-diaminoanthraquinone-2.6-disulfonic acid sodium are mixed with 6 parts of sodium hydrosulfite in 25 parts by volume of aqueous 24% ammonia solution for five hours to 100 in the closed Vessel heated.
It is filtered, washed. hot off and receives. on drying, a condensation product which is oxidized by heating in air, then dissolves in sulfuric acid with a yellow color and in ethyl acetate with a blue color.
This condensation product corresponds to D f% - probably 1-oxy-4-methylamino-- 5, 8-diaminoanthraquinone.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH148686T | 1930-04-17 | ||
CH142743T | 1930-04-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH148686A true CH148686A (en) | 1931-07-31 |
Family
ID=25714120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH148686D CH148686A (en) | 1930-04-17 | 1930-04-17 | Process for the preparation of a dye of the anthraquinone series. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH148686A (en) |
-
1930
- 1930-04-17 CH CH148686D patent/CH148686A/en unknown
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