CH218811A - Process for the preparation of a monoazo dye. - Google Patents
Process for the preparation of a monoazo dye.Info
- Publication number
- CH218811A CH218811A CH218811DA CH218811A CH 218811 A CH218811 A CH 218811A CH 218811D A CH218811D A CH 218811DA CH 218811 A CH218811 A CH 218811A
- Authority
- CH
- Switzerland
- Prior art keywords
- amino
- preparation
- methoxybenzene
- monoazo dye
- 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
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/10—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
- C09B29/18—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides
- C09B29/20—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides of the naphthalene series
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines Honoazofarbstoffes. Gegenstand des vorliegenden Zusatzpa tentes ist ein Verfahren zur Herstellung eines Monoazofarbstoffes, welches dadurch gekenn zeichnet ist, dass man die Diazoverbindung von 1-Amino-4-methoxybenzol-5-(sulfonyl-n- dibutylamin) mit 2,3-Oxynaphthoyl-(1'-amino- 4'-methoxybenzol) kuppelt.
<I>Beispiel:</I> 31,4 Gewichtsteile 1- Amino - 4 -methoxy- benzol-5-(sulfonyl-n-dibutylamin) werden in der üblichen Weise diazotiert. Hierauf ver setzt man die Diazolösung zur Bindung der überschüssigen Mineralsäure mit Natrium acetat und rührt sie in eine Lösung von 29,3 Gewichtsteilen 2,3 - OxynaphthoSTl -(1'-amino- 4'-methoxybenzol) in verdünnter Natronlauge ein.
Nach Beendigung der Kupplung wird der entstandene Farbstoff abfiltriert, gut ausgewaschen und getrocknet. Er stellt ein rotes Pulver dar, das sich in Butylacetat, Aceton, Xylol und andern organischen Lösungsmitteln leicht löst und Celluloseesterlacke in roten Tönen von guter Lichtechtheit färbt.
Process for the preparation of a honoazo dye. The subject of the present additional patent is a process for the production of a monoazo dye, which is characterized in that the diazo compound of 1-amino-4-methoxybenzene-5- (sulfonyl-n-dibutylamine) with 2,3-oxynaphthoyl- (1 '-amino-4'-methoxybenzene) couples.
<I> Example: </I> 31.4 parts by weight of 1- amino-4-methoxy-benzene-5- (sulfonyl-n-dibutylamine) are diazotized in the usual way. The diazo solution is then added to bind the excess mineral acid with sodium acetate and it is stirred into a solution of 29.3 parts by weight of 2,3 - OxynaphthoSTl - (1'-amino-4'-methoxybenzene) in dilute sodium hydroxide solution.
After the coupling has ended, the resulting dye is filtered off, washed well and dried. It is a red powder that dissolves easily in butyl acetate, acetone, xylene and other organic solvents and colors cellulose ester lacquers in red shades of good lightfastness.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE218811X | 1938-09-15 | ||
CH214172T | 1939-09-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH218811A true CH218811A (en) | 1941-12-31 |
Family
ID=25725542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH218811D CH218811A (en) | 1938-09-15 | 1939-09-07 | Process for the preparation of a monoazo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH218811A (en) |
-
1939
- 1939-09-07 CH CH218811D patent/CH218811A/en unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH218811A (en) | Process for the preparation of a monoazo dye. | |
CH215585A (en) | Process for the preparation of a monoazo dye. | |
CH211434A (en) | Process for the preparation of a monoazo dye. | |
CH215587A (en) | Process for the preparation of a monoazo dye. | |
CH215577A (en) | Process for the preparation of a monoazo dye. | |
CH211435A (en) | Process for the preparation of a monoazo dye. | |
CH215578A (en) | Process for the preparation of a monoazo dye. | |
CH215574A (en) | Process for the preparation of a monoazo dye. | |
CH212795A (en) | Process for the preparation of a monoazo dye. | |
CH211433A (en) | Process for the preparation of a monoazo dye. | |
CH212800A (en) | Process for the preparation of a monoazo dye. | |
CH212799A (en) | Process for the preparation of a monoazo dye. | |
CH212796A (en) | Process for the preparation of a monoazo dye. | |
CH215579A (en) | Process for the preparation of a monoazo dye. | |
CH215584A (en) | Process for the preparation of a monoazo dye. | |
CH215575A (en) | Process for the preparation of a monoazo dye. | |
CH215582A (en) | Process for the preparation of a monoazo dye. | |
CH218810A (en) | Process for the preparation of a monoazo dye. | |
CH215580A (en) | Process for the preparation of a monoazo dye. | |
CH215576A (en) | Process for the preparation of a monoazo dye. | |
CH210497A (en) | Process for the preparation of a water-soluble azo dye. | |
CH219579A (en) | Process for the preparation of an azo dye. | |
CH212798A (en) | Process for the preparation of a monoazo dye. | |
CH212797A (en) | Process for the preparation of a monoazo dye. | |
CH215583A (en) | Process for the preparation of a monoazo dye. |