CH202757A - Process for the preparation of an oxazine of the anthraquinone series. - Google Patents
Process for the preparation of an oxazine of the anthraquinone series.Info
- Publication number
- CH202757A CH202757A CH202757DA CH202757A CH 202757 A CH202757 A CH 202757A CH 202757D A CH202757D A CH 202757DA CH 202757 A CH202757 A CH 202757A
- Authority
- CH
- Switzerland
- Prior art keywords
- acid
- oxazine
- preparation
- condensation
- copper chloride
- 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
- C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
- C09B5/24—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic rings being only condensed with an anthraquinone nucleus in 1-2 or 2-3 position
- C09B5/44—Azines of the anthracene series
- C09B5/60—Thiazines; Oxazines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Darstellung eines Oxazins der Anthrachinonreihe. Gegenstand des vorliegenden Zusatzpa tentes ist ein Verfahren zur Darstellung eines Oxazins der Anthrachinonreihe, welches da durch gekennzeichnet ist, dass man 1-jodan- thrachinon-2-sulfosaures Kalium mit<B>3.</B> 4.<B>5.</B> 6- Tetrachlor-2-aminophenol in Gegenwart eines säurebindenden Mittels kondensiert.
<I>Beispiel:</I> 23Gewichtsteilel-jodanthrachinon-2.Sulfo- saures Kalium,<B>19</B> Gewichtsteile 3.4.5.6- Tetraehlor-2-amiiiophenol (95-prozentig), <B>15</B> Gewichtsteile Soda ealciniert, <B>15</B> Gewichts teile Natriumbicarbonat und<B>1</B> Gewiebtsteil Kupferchlorür werden in 400 Gewiebtsteilen Wasser<B>3</B> Stunden bei 40-500 C gerührt.
Man gibt das Reaktionsgemisch in etwa 4000 Gewichtsteile beissen Wassers, saugt ab und wäscht mit heissem Wasser nach. Zur wei teren Reinigung kocht man das Antbrachinon- tetrachloroxazin mit verdünnter Salzsäure aus, wäscht neutral, trocknet und kristallisiert aus etwa<B>1000</B> Volumteilen Nitrobenzol um. Man erhält lange dunkelviolettbraune, glänzende Nadeln, welche sieh in konzentrierter Schwe felsäure init grüner Farbe lösen und aus braun roter Küpe auf Baumwolle blaustichig rote Farbtöne ergeben.
Process for the preparation of an oxazine of the anthraquinone series. The subject matter of the present additional patent is a process for the preparation of an oxazine of the anthraquinone series, which is characterized in that 1-iodanethrachinone-2-sulfonic acid potassium with <B> 3. </B> 4. <B> 5. </B> 6-tetrachloro-2-aminophenol condensed in the presence of an acid-binding agent.
<I> Example: </I> 23 parts by weight iodanthraquinone-2.Sulfo-acid potassium, <B> 19 </B> parts by weight 3.4.5.6-tetrachloro-2-amiiiophenol (95 percent), <B> 15 </ B> parts by weight of soda soda, <B> 15 </B> parts by weight of sodium bicarbonate and <B> 1 </B> part by weight of copper chloride are stirred in 400 parts by weight of water at 40-500 ° C. for 3 hours.
The reaction mixture is poured into about 4000 parts by weight of hot water, filtered off with suction and washed with hot water. For further cleaning, the antbrachinon tetrachloroxazine is boiled out with dilute hydrochloric acid, washed neutral, dried and recrystallized from about <B> 1000 </B> parts by volume of nitrobenzene. Long, dark purple-brown, shiny needles are obtained which dissolve in concentrated sulfuric acid with a green color and give blue-tinged red hues from a brown-red vat on cotton.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202757X | 1936-06-27 | ||
CH199191T | 1938-08-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH202757A true CH202757A (en) | 1939-01-31 |
Family
ID=25723234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH202757D CH202757A (en) | 1936-06-27 | 1937-06-18 | Process for the preparation of an oxazine of the anthraquinone series. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH202757A (en) |
-
1937
- 1937-06-18 CH CH202757D patent/CH202757A/en unknown
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