CH209556A - Process for the preparation of a new derivative of an azo dye. - Google Patents
Process for the preparation of a new derivative of an azo dye.Info
- Publication number
- CH209556A CH209556A CH209556DA CH209556A CH 209556 A CH209556 A CH 209556A CH 209556D A CH209556D A CH 209556DA CH 209556 A CH209556 A CH 209556A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- molecule
- dianotated
- preparation
- azo dye
- 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
- C09B43/00—Preparation of azo dyes from other azo compounds
- C09B43/12—Preparation of azo dyes from other azo compounds by acylation of amino groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 205164. Verfahren zur Herstellung eines neuen Derivates eines Azofarbstoffes. Es wurde gefunden, dass man ein neues Derivat eines Azofarbstoffes erhält, wenn man 1 Mol des Pentakisazofarbstoffes, der erhalten wird durch Vereinigen eines Moleküls 1,3- Diaminobenzol mit je einem Molekül des dianotierten Disazofarbstoffes aus dianotierter 2-Aminonaphthalin-4,8-disulfonsäure und 1- Amino-3-methylbenzol,
Weiterdiazotieren und Vereinigen mit einem zweiten Molekül 1- Amino-3-methylbenzol und einem Molekül des dianotierten Monazofarbstoffes aus diano tierter 2-Aminonaphthalin-4,8-disulfonsäure und 1-Naphtylamin, mit 2 Mol Benzoylchlorid in Gegenwart einer tertiären Base acyliert.
Der neue Farbstoff stellt ein gelbbraunes Pulver dar und färbt Baumwolle in echten gelbbraunen Tönen. <I>Beispiel:</I> 1,1 Teil des Pentakisazofarbstoffes, der erhalten wird durch Vereinigen eines Mole küls 1,3-Diaminobenzol mit je einem Molekül des dianotierten Disazofarbstoffes aus diazo- tierter 2-Aminonaphthalin-4,8-disulfonsäure und 1-Amino-3-methylbenzol,
Weiterdiazo- tieren und Vereinigen mit einem zweiten Molekül 1-Amino-3-methylbenzol und einem Molekül des dianotierten Monazofarbstoffes aus dianotierter 2-Aminonaphthalin-4,8-disul- fonsäure und 1-Naphtylamin wird in 5 Teilen Pyridin suspendiert und bei 400 mit 1,68 Teilen Benzoylchlorid versetzt. Man erwärmt allmählich auf 90 und hält diese Temperatur eine Stunde.
Nach dieser Zeit wird das Di- benzoylprodukt abgeschieden und getrocknet.
Additional patent to main patent no. 205164. Process for the production of a new derivative of an azo dye. It has been found that a new derivative of an azo dye is obtained if 1 mole of the pentakisazo dye obtained by combining one molecule of 1,3-diaminobenzene with one molecule of the dianotated disazo dye from dianotated 2-aminonaphthalene-4,8-disulfonic acid and 1- amino-3-methylbenzene,
Further diazotization and combining with a second molecule of 1-amino-3-methylbenzene and a molecule of the dianotized monazo dye from diano-tated 2-aminonaphthalene-4,8-disulfonic acid and 1-naphthylamine, acylated with 2 moles of benzoyl chloride in the presence of a tertiary base.
The new dye is a yellow-brown powder and dyes cotton in real yellow-brown tones. <I> Example: </I> 1.1 part of the pentakisazo dye, which is obtained by combining one molecule of 1,3-diaminobenzene with one molecule each of the dianotated disazo dye from diazotated 2-aminonaphthalene-4,8-disulfonic acid and 1-amino-3-methylbenzene,
Further diazo- tate and combine with a second molecule of 1-amino-3-methylbenzene and a molecule of the dianotized monazo dye from dianotized 2-aminonaphthalene-4,8-disulfonic acid and 1-naphthylamine is suspended in 5 parts of pyridine and at 400 with 1 , 68 parts of benzoyl chloride were added. The temperature is gradually increased to 90 and this temperature is maintained for one hour.
After this time, the dibenzoyl product is separated out and dried.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH209556T | 1937-01-26 | ||
CH205164T | 1939-02-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH209556A true CH209556A (en) | 1940-04-15 |
Family
ID=25724143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH209556D CH209556A (en) | 1937-01-26 | 1937-01-26 | Process for the preparation of a new derivative of an azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH209556A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3969339A (en) * | 1972-09-14 | 1976-07-13 | Produits Chimiques Ugine Kuhlmann | Water-soluble pentakis-azo dyestuffs derived from 4,4'-diaminoazobenzene |
-
1937
- 1937-01-26 CH CH209556D patent/CH209556A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3969339A (en) * | 1972-09-14 | 1976-07-13 | Produits Chimiques Ugine Kuhlmann | Water-soluble pentakis-azo dyestuffs derived from 4,4'-diaminoazobenzene |
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