CH305014A - Process for the production of an azo pigment. - Google Patents
Process for the production of an azo pigment.Info
- Publication number
- CH305014A CH305014A CH305014DA CH305014A CH 305014 A CH305014 A CH 305014A CH 305014D A CH305014D A CH 305014DA CH 305014 A CH305014 A CH 305014A
- Authority
- CH
- Switzerland
- Prior art keywords
- acid
- carried out
- condensation
- production
- azo pigment
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 6
- 239000000049 pigment Substances 0.000 title claims description 6
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 239000002253 acid Substances 0.000 claims description 11
- 150000004820 halides Chemical class 0.000 claims description 7
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 5
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 claims description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 2
- 239000003086 colorant Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 15
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 6
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 4
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000004985 diamines Chemical class 0.000 description 2
- 230000002140 halogenating effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- -1 phosphorus halides Chemical class 0.000 description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 2
- OCJBOOLMMGQPQU-UHFFFAOYSA-N 1,4-dichlorobenzene Chemical compound ClC1=CC=C(Cl)C=C1 OCJBOOLMMGQPQU-UHFFFAOYSA-N 0.000 description 1
- CDIDGWDGQGVCIB-UHFFFAOYSA-N 3,5-bis(trifluoromethyl)aniline Chemical compound NC1=CC(C(F)(F)F)=CC(C(F)(F)F)=C1 CDIDGWDGQGVCIB-UHFFFAOYSA-N 0.000 description 1
- OCISOSJGBCQHHN-UHFFFAOYSA-N 3-hydroxynaphthalene-1-carboxylic acid Chemical compound C1=CC=C2C(C(=O)O)=CC(O)=CC2=C1 OCISOSJGBCQHHN-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229940117389 dichlorobenzene Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000008096 xylene Substances 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
- C09B43/32—Preparation of azo dyes from other azo compounds by reacting carboxylic or sulfonic groups, or derivatives thereof, with amines; by reacting keto-groups with amines
- C09B43/38—Preparation of azo dyes from other azo compounds by reacting carboxylic or sulfonic groups, or derivatives thereof, with amines; by reacting keto-groups with amines by reacting two or more ortho-hydroxy naphthoic acid dyes with polyamines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
<B>Zusatzpatent</B> zum Hauptpatent Nr. 297020. Verfahren zur Herstellung eines Azopigmentes. Es wurde gefunden, dass man zu einem wertvollen Azopigment gelangt, wenn man im molekularen Verhältnis 2: 1 ein Halogenid der azogruppenhaltigen Carbonsäure der For mel
EMI0001.0006
mit 1,4-Diaminobenzol kondensiert.
Das neue Pigment färbt Kunststoffe, z. B. Polyvinylehlorid, in orangen Tönen von sehr guter Echtheit.
Als Säurehalogenide der obigen Zusammen setzung kommen z. B. das Säurebromid und insbesondere das Säurechlorid in Betracht. Diese Halogenide lassen sieh zweckmässig durch Behandlung der Carbonsäure der oben angegebenen Formel mit säurehalogenierenden Mitteln wie Phosphorhalogeniden oder Phos- phoroxyhalogeniden herstellen. Das Säure- ehlorid kann z. B. mittels Phosphorpenta, Chlorid oder besonders vorteilhaft mittels Thionylehlorid erhalten werden.
Die Behand lung mit den säurehalogenierenden Mitteln wird zweckmässig in einem indifferenten orga- nisehen Lösungsmittel wie Mono- oder einem Dichlorbenzol, Toluol, Xylol, Benzol oder Ni- trobenzol durchgeführt.
Die Kondensation des Säurehalogenides mit dem Diamin erfolgt vorteilhaft ebenfalls in einem der genannten. organischen Lösungs mitteln, wobei es zu empfehlen ist, diese Um setzung bei erhöhter Temperatur in Gegenwart eines säurebindenden Mittels wie z. B. Ammo niak oder Pyr idin durchzuführen. Die als Ausgangsstoffe zu verwendenden Säure chloride können aus dem Reaktionsgemisch, in welchem sie wie angegeben hergestellt wur den, abgeschieden und gegebenenfalls umkri stallisiert werden.
Man kann gegebenenfalls, insbesondere wenn zur Herstellung des Säure halogenides Thionylchlorid verwendet wurde, auf eine Abseheidung verzichten und die Kondensation unmittelbar anschliessend an die Herstellung des Säurehalogenides aus führen.
Die relative Menge der Reaktionsteilneh mer ist so zu wählen, dass zwei Moleküle des Carbonsäurehalogenides mit einem Molekül des Diamins in Reaktion treten. Zur praktischen Durchführung der Reaktion ist es zweck mässig, einen geringen überschuss der erst genannten Komponente über die theoretisch erforderliche Menge anzuwenden.
Beispiel: 85,6 Teile des Farbstoffes aus diazotiertem 1-Amino-3,5-di-(trifluormethyl)-benzol und 2,3-Oxynaphthoesäure werden in 500 Volum- teilen wasserfreiem Toluol angerührt und mit 28,6 Teilen Thionylchlorid versetzt und zum Sieden erhitzt. Nach dem Eintreten vollstän diger Lösung wird noch eine halbe Stunde im Sieden gehalten, heiss klärfiltriert und das Fil trat einige Zeit stehen gelassen.
Die abfiltrier- ten Kristalle wäscht man auf der Nutsche nach und trocknet sie im Vakuum bei 45 . Das Säurechlorid kristallisiert in langen, dünnen, z. T. gebogenen Nadeln.
44,65 Teile dieses Säurechlorides werden in 500 Volumteilen trockenem Toluol heiss gelöst. In diese Lösung lässt man rasch 5,4 Teile 1,4- Diaminobenzol, gelöst in 100 Volumteilen Toluol und 30 Volumteilen trockenem Pyridin einlaufen. Die Farbstoffbildung wird durch etwa 15stündiges Sieden am Rückfluss be endet. Man filtriert heiss ab und wäscht das Nutschgut mit heissem Toluol gründlich nach.
Nach dem Trocknen erhält man einen fein kri stallinen Farbstoff.
<B> Additional patent </B> to main patent no. 297020. Process for the production of an azo pigment. It has been found that a valuable azo pigment is obtained if a halide of the azo group-containing carboxylic acid of the formula is used in a molecular ratio of 2: 1
EMI0001.0006
condensed with 1,4-diaminobenzene.
The new pigment colors plastics, e.g. B. Polyvinyl chloride, in orange tones of very good fastness.
As acid halides of the above composition come z. B. the acid bromide and especially the acid chloride into consideration. These halides can be conveniently prepared by treating the carboxylic acid of the formula given above with acid halogenating agents such as phosphorus halides or phosphorus oxyhalides. The acid ehlorid can z. B. by means of phosphorus penta, chloride or particularly advantageously by means of thionyl chloride.
The treatment with the acid halogenating agents is expediently carried out in an inert organic solvent such as mono- or dichlorobenzene, toluene, xylene, benzene or nitrobenzene.
The condensation of the acid halide with the diamine is also advantageously carried out in one of the aforementioned. organic solvents, and it is recommended that this implementation at elevated temperature in the presence of an acid-binding agent such. B. ammonia or pyridine to carry out. The acid chlorides to be used as starting materials can be deposited from the reaction mixture in which they were prepared as indicated and optionally recrystallized.
If necessary, especially if thionyl chloride was used to prepare the acid halide, separation can be dispensed with and the condensation can be carried out immediately after the preparation of the acid halide.
The relative amount of the reactants should be chosen so that two molecules of the carboxylic acid halide react with one molecule of the diamine. To carry out the reaction in practice, it is advisable to use a slight excess of the first-mentioned component over the theoretically required amount.
Example: 85.6 parts of the dye from diazotized 1-amino-3,5-di- (trifluoromethyl) -benzene and 2,3-oxynaphthoic acid are mixed in 500 parts by volume of anhydrous toluene and mixed with 28.6 parts of thionyl chloride and for Boiling heated. After the complete solution has entered, the mixture is kept at the boil for half an hour, clarified by filtration while hot and the Fil is left to stand for some time.
The filtered crystals are washed on the suction filter and dried in vacuo at 45. The acid chloride crystallizes in long, thin, z. T. curved needles.
44.65 parts of this acid chloride are dissolved in 500 parts by volume of dry toluene while hot. 5.4 parts of 1,4-diaminobenzene, dissolved in 100 parts by volume of toluene and 30 parts by volume of dry pyridine, are rapidly run into this solution. The dye formation is ended by refluxing for about 15 hours. It is filtered off while hot and the filter residue is washed thoroughly with hot toluene.
After drying, a finely crystalline dye is obtained.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH297020T | 1951-03-02 | ||
| CH305014T | 1952-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH305014A true CH305014A (en) | 1955-01-31 |
Family
ID=25733777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH305014D CH305014A (en) | 1951-03-02 | 1952-10-20 | Process for the production of an azo pigment. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH305014A (en) |
-
1952
- 1952-10-20 CH CH305014D patent/CH305014A/en unknown
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