CH348165A - Process for the preparation of a dye intermediate - Google Patents
Process for the preparation of a dye intermediateInfo
- Publication number
- CH348165A CH348165A CH348165DA CH348165A CH 348165 A CH348165 A CH 348165A CH 348165D A CH348165D A CH 348165DA CH 348165 A CH348165 A CH 348165A
- Authority
- CH
- Switzerland
- Prior art keywords
- benzoylamino
- methyl
- anthraquinone
- preparation
- azobenzene
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 9
- 238000002360 preparation method Methods 0.000 title claims description 5
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 claims 1
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 6
- 239000000975 dye Substances 0.000 description 5
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 4
- SVJSEJOASMWXGQ-UHFFFAOYSA-N (4-bromophenyl)-phenyldiazene Chemical compound C1=CC(Br)=CC=C1N=NC1=CC=CC=C1 SVJSEJOASMWXGQ-UHFFFAOYSA-N 0.000 description 3
- QPQKUYVSJWQSDY-CCEZHUSRSA-N 4-(phenylazo)aniline Chemical compound C1=CC(N)=CC=C1\N=N\C1=CC=CC=C1 QPQKUYVSJWQSDY-CCEZHUSRSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- NJFDMENHTAYHMA-UHFFFAOYSA-N (4-chlorophenyl)-phenyldiazene Chemical compound C1=CC(Cl)=CC=C1N=NC1=CC=CC=C1 NJFDMENHTAYHMA-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- XWLCNINHFJVOQT-UHFFFAOYSA-N N-(4-amino-2-methyl-9,10-dioxoanthracen-1-yl)benzamide Chemical compound C(C1=CC=CC=C1)(=O)NC1=C(C=C(C=2C(C3=CC=CC=C3C(C12)=O)=O)N)C XWLCNINHFJVOQT-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 229910021591 Copper(I) chloride Inorganic materials 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 241000530268 Lycaena heteronea Species 0.000 description 1
- DMLAVOWQYNRWNQ-UHFFFAOYSA-N azobenzene Chemical compound C1=CC=CC=C1N=NC1=CC=CC=C1 DMLAVOWQYNRWNQ-UHFFFAOYSA-N 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 description 1
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 1
- OPQARKPSCNTWTJ-UHFFFAOYSA-L copper(ii) acetate Chemical compound [Cu+2].CC([O-])=O.CC([O-])=O OPQARKPSCNTWTJ-UHFFFAOYSA-L 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229940045803 cuprous chloride Drugs 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- CTQFIEDKPHQUMQ-UHFFFAOYSA-N n-(4-bromo-2-methyl-9,10-dioxoanthracen-1-yl)benzamide Chemical compound CC1=CC(Br)=C2C(=O)C3=CC=CC=C3C(=O)C2=C1NC(=O)C1=CC=CC=C1 CTQFIEDKPHQUMQ-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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
- C09B43/00—Preparation of azo dyes from other azo compounds
- C09B43/11—Preparation of azo dyes from other azo compounds by introducing hydrocarbon radicals or substituted hydrocarbon radicals on primary or secondary amino groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines Farbstoffzwischenproduktes Diese Erfindung bezieht sich auf ein Verfahren zur Herstellung von 1-Benzoylamino-4-p-benzolazo- anilino-2-methyl-anthrachinon.
Es wurde früher vorgeschlagen, 1-Benzoylamino- 4-p-benzolazoanilino-2-methyl-anthrachinon, das als Farbstoffzwischenprodukt verwendet wird, durch Einwirkung eines 4-Halogen-l-benzoylamino-2-me- thyl-anthrachinons auf 4-Amino-azobenzol herzu stellen.
Es wurde jedoch vor wenigen Jahren erkannt, dass der Gebrauch von 4-Amino-azobenzol bei Her stellungsverfahren vermieden werden sollte, da diese Verbindung verdächtig ist, leicht carcinogene Eigen schaften zu besitzen.
Es wurde nun gefunden, dass 1-Benzoylamino-4- p-benzolazo-anilino-2-methyl-anthrachinon durch Re aktion von 4-Halogen-azobenzol mit 4-Amino-l-ben- zoylamino-2-methyl-anthrachinon erhalten werden kann. Bei diesem neuen Verfahren ist nicht nur die Gefahr, welche mit dem Gebrauch des toxischen 4- Amino-azobenzols verbunden ist, beseitigt, sondern es ist auch die erhaltene Ausbeute des besagten Farb- stoffzwischenproduktes unerwartet viel höher als bei dem vorher bekannten Verfahren.
Gegenstand der vorliegenden Erfindung ist daher ein neues Verfahren für die Herstellung von 1-Ben zoylamino-4-p-benzolazo-anilino-2-rnethyl-anthrachi- non, nach welchem man 4-Halogen-azobenzol mit 4-Amino-l-benzoylamino-2-methyl-anthrachinon um setzt.
Als Beispiele von 4-Halogen-azobenzolen, welche bei diesem neuen Verfahren verwendet werden kön nen, seien 4-Chlor-azobenzol und 4-Brom-azobenzol erwähnt.
Die Reaktion wird zweckmässigerweise ausgeführt, indem man die Ausgangsmaterialien miteinander er- hitzt, vorzugsweise in Anwesenheit eines organischen Lösungsmittels mit hohem Siedepunkt, wie z. B. Ni- trobenzol oder Naphthalin. Wenn gewünscht, kann auch ein säurebindendes Mittel, wie z. B. Natrium- carbonat, und ein vorzugsweise Kupfer enthaltender Katalyt, wie z. B. Kupferpulver, Kupferacetat oder Cuprochlorid, zugegen sein.
Wenn gewünscht, kön nen auch Mischungen von Lösungsmitteln, Mischun gen von säurebindenden Mitteln und/oder Mischun gen von Katalyten zur Anwendung gebracht werden.
Die nach diesem neuen Verfahren erhaltenen Produkte können, wie im britischen Patent Nr. 560988 beschrieben ist, sulfoniert werden und geben braune Wollfarbstoffe von ausgezeichneten Echtheitseigen schaften.
Im folgenden Beispiel bedeuten die Teile Ge wichtsteile.
<I>Beispiel</I> 13 Teile 4-Amino-l-benzoylamino-2-methyl-an- thrachinon, 13 Teile p-Brom-azobenzol, 4,6 Teile wasserfreies Natriumcarbonat, 0,3 Teile Kupferbronze und 0,3 Teile Kupferchlorid werden 12 Stunden lang in 100 Teilen Nitrobenzol bei dessen Siedepunkt er hitzt. Die Reaktionsmischung wird gekühlt und die ausgefallenen Kristalle abfiltriert, mit Äthylalkohol gewaschen und dann mit verdünnter Salzsäure ge kocht, um Kupfersalze zu entfernen.
Das 1-Benzoyl- amino - 4-p-benzolazo-anilino - 2 - methyl-anthrachinon wird so in 88 %iger Ausbeute der Theorie erhalten. Es kann, wie im britischen Patent Nr. 560988 be schrieben ist, sulfoniert werden und gibt dann einen braunen Wollfarbstoff.
Wenn man die äquivalenten Mengen von 4- Amino-azobenzol und 4-Brom-l-benzoylamino-2-me- thyl-anthrachinon unter den gleichen Bedingungen miteinander reagieren lässt, so erhält man eine Aus beute von 5 /a der Theorie. .
Im obigen Beispiel kann an Stelle von p-Brom- azobenzol die äquivalente Menge p-Chlor-azobenzol und anstelle von Nitrobenzol als Lösungsmittel Naph thalin verwendet werden.
Process for the Preparation of a Dye Intermediate Product This invention relates to a process for the preparation of 1-benzoylamino-4-p-benzolazoanilino-2-methyl-anthraquinone.
It has previously been proposed to 1-benzoylamino-4-p-benzolazoanilino-2-methyl-anthraquinone, which is used as a dye intermediate, by the action of a 4-halo-1-benzoylamino-2-methyl-anthraquinone on 4-amino to produce azobenzene.
However, it was recognized a few years ago that the use of 4-amino-azobenzene in manufacturing processes should be avoided, since this compound is suspected of having carcinogenic properties.
It has now been found that 1-benzoylamino-4-p-benzolazo-anilino-2-methyl-anthraquinone can be obtained by reacting 4-haloazobenzene with 4-amino-1-benzoylamino-2-methyl-anthraquinone can. With this new process, not only is the danger associated with the use of the toxic 4-amino-azobenzene eliminated, but the yield of said dye intermediate is also unexpectedly much higher than in the previously known process.
The present invention therefore provides a new process for the preparation of 1-benzoylamino-4-p-benzolazo-anilino-2-methyl-anthraquinone, according to which 4-halo-azobenzene is mixed with 4-amino-1-benzoylamino -2-methyl-anthraquinone sets.
Examples of 4-halo-azobenzenes which can be used in this new process are 4-chloro-azobenzene and 4-bromo-azobenzene.
The reaction is conveniently carried out by heating the starting materials together, preferably in the presence of an organic solvent with a high boiling point, such as. B. nitrobenzene or naphthalene. If desired, an acid binding agent, such as. B. sodium carbonate, and a preferably copper-containing catalyst, such as. B. copper powder, copper acetate or cuprous chloride, be present.
If desired, mixtures of solvents, mixtures of acid-binding agents and / or mixtures of catalytes can also be used.
The products obtained by this new process can, as described in British Patent No. 560988, be sulfonated and give brown wool dyes with excellent fastness properties.
In the following example, the parts mean parts by weight.
<I> Example </I> 13 parts of 4-amino-1-benzoylamino-2-methyl-anthrachinone, 13 parts of p-bromo-azobenzene, 4.6 parts of anhydrous sodium carbonate, 0.3 part of copper bronze and 0.3 Parts of copper chloride are heated for 12 hours in 100 parts of nitrobenzene at the boiling point. The reaction mixture is cooled and the precipitated crystals are filtered off, washed with ethyl alcohol and then boiled with dilute hydrochloric acid to remove copper salts.
The 1-benzoylamino-4-p-benzolazo-anilino-2-methyl-anthraquinone is thus obtained in a theoretical yield of 88%. It can be sulfonated as described in British Patent No. 560988 and then gives a brown wool dye.
If the equivalent amounts of 4-amino-azobenzene and 4-bromo-1-benzoylamino-2-methyl-anthraquinone are allowed to react with one another under the same conditions, the result is a yield of 5 / a of theory. .
In the above example, the equivalent amount of p-chloroazobenzene can be used instead of p-bromoazobenzene and naphthalene can be used as solvent instead of nitrobenzene.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3509555A GB792717A (en) | 1955-12-07 | 1955-12-07 | New manufacturing process |
| GB71156X | 1956-11-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH348165A true CH348165A (en) | 1960-08-15 |
Family
ID=26241217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH348165D CH348165A (en) | 1955-12-07 | 1956-12-07 | Process for the preparation of a dye intermediate |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH348165A (en) |
-
1956
- 1956-12-07 CH CH348165D patent/CH348165A/en unknown
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