CH178224A - Process for the production of a new dye. - Google Patents
Process for the production of a new dye.Info
- Publication number
- CH178224A CH178224A CH178224DA CH178224A CH 178224 A CH178224 A CH 178224A CH 178224D A CH178224D A CH 178224DA CH 178224 A CH178224 A CH 178224A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- production
- new dye
- diazotized
- nitro
- 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
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
- C09B29/08—Amino benzenes
-
- 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
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Paper (AREA)
Description
Verfahren zur Herstellung eines neuen Farbstoffes. Es wurde gefunden, dass man. einen rieuen Farbstoff erhält, wenn man diazotiertes 2- Amitio-5-niti-o-phenyläthylsullon mit Äthyl- oxyäthylaniliii vereinigt. Der i#o erhaltene Farbstoff bildet in trockenem Zustande ein dunkles Pulver, das sich in organischen Lösungsmitteln, wie Aceton, Essigester usw., mit leuchtend blauroter Farbe löst.
Durch geeignete Zusätze in fuine Verteilung ge bracht, färbt er Acetatkunstseide in reinen, violettroten Tönen.
<I>Beispiel</I> <B>23</B> Teile 2-Amino-5-nitro-phenyläthyl- sulfon, erhalten z.B. durch Reduzieren des Sulfochlorides der 1-Cliloi--4-nitro-2-benzol- sulfonsäure mit Natriumsulfit, Umsetzen der so erhaltenen Sulfinsäure zunächst mit Äthyl- bromid,und hierauf mit Ammoniak,
werden unter kräftigem Rühren in etwa<B>300</B> Teilen Schwefelsäure gelöst und darauf durch Zu satz von<B>8</B> Teilen Natriiiiiinitrit oder der entsprechenden Menge NitrosyIschwefelsäure diazotiert. Man rührt, bis eine Probe in Eis wasser klar löslich ist. Nun wird die ganze Mischung in viel Eiswasser gegeben. Die so erhaltene klare Diazolösting vereinigt man mit einer Auflösung von<B>16,5</B> Teilen Äthyl- oxyäthylanilin in der nötigen Menge ver dünnter Mineralsäure. Der Farbstoff scheidet sich als dunkles Pulver aus.
Nachdem die Kupplung durch Zusatz von Natriumacetat züi Ende geführt wurde, wird filtriert und neutral gewaschen.
Process for the production of a new dye. It was found that one. A rough dye is obtained when diazotized 2-amitio-5-niti-o-phenylethylsullone is combined with ethyl oxyäthylaniliii. The dye obtained in the dry state forms a dark powder which dissolves in organic solvents such as acetone, ethyl acetate, etc., with a bright blue-red color.
With suitable additives, it dyes acetate artificial silk in pure, violet-red tones when it is properly distributed.
<I> Example </I> <B> 23 </B> parts of 2-amino-5-nitro-phenylethyl sulfone, obtained e.g. by reducing the sulfochloride of 1-Cliloi - 4-nitro-2-benzene sulfonic acid with sodium sulfite, reacting the sulfinic acid obtained in this way first with ethyl bromide, and then with ammonia,
are dissolved in about 300 parts of sulfuric acid with vigorous stirring and then diazotized by adding 8 parts of sodium nitrite or the corresponding amount of nitrosulfuric acid. The mixture is stirred until a sample is clearly soluble in ice water. Now the whole mixture is poured into a lot of ice water. The clear diazo solution obtained in this way is combined with a dissolution of 16.5 parts of ethyl oxyethylaniline in the necessary amount of dilute mineral acid. The dye separates out as a dark powder.
After the coupling has been completed by adding sodium acetate, it is filtered and washed neutral.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH178224T | 1934-03-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH178224A true CH178224A (en) | 1935-07-15 |
Family
ID=4428356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH178224D CH178224A (en) | 1934-03-24 | 1934-03-24 | Process for the production of a new dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH178224A (en) |
-
1934
- 1934-03-24 CH CH178224D patent/CH178224A/en unknown
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