CH203053A - Process for the preparation of a chromable dye of the triarylmethane series. - Google Patents
Process for the preparation of a chromable dye of the triarylmethane series.Info
- Publication number
- CH203053A CH203053A CH203053DA CH203053A CH 203053 A CH203053 A CH 203053A CH 203053D A CH203053D A CH 203053DA CH 203053 A CH203053 A CH 203053A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- preparation
- chromable
- anhydride
- phenol
- 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
- C09B11/00—Diaryl- or thriarylmethane dyes
- C09B11/04—Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
- C09B11/10—Amino derivatives of triarylmethanes
- C09B11/24—Phthaleins containing amino groups ; Phthalanes; Fluoranes; Phthalides; Rhodamine dyes; Phthaleins having heterocyclic aryl rings; Lactone or lactame forms of triarylmethane dyes
- C09B11/245—Phthaleins having both OH and amino substituent(s) on aryl ring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
<B>Zusatzpatent</B> zum Hauptpatent Nr. 198713. Verfahren zur Darstellung eines ehromierbaren Farbstoffes der Triarylmethanreihe. Gegenstand dieses Zusatzpatentes ist ein Verfahren zur Darstellung eines chromier- baren Farbstoffes der Triarylmethanreihe, welches dadurch gekennzeichnet ist,
dass man methyläthylamino - m - phenol - co - sulf onsaures Natrium mit 5-Ogytrimellithsäureanhydrid kondensiert. <I>'</I> Beispiel: 65 Gewichtsteile 5-Ogytrimellithsäure- anhydrid werden mit<B>82</B> Gewichtsteilen me- thylamino-m-phenol-u)-sulfonsaurem Natrium 4 Stunden auf 180-190' C erhitzt.
Die pul- verisierte,Schmelze wird zur Entfernung der überschüssigen 5-Ogytrimellithsäure mit 200 Gewichtsteilen Alkohol kurze Zeit in der Wärme behandelt und nach dem Erkalten abgesaugt. Der Rückstand wird in etwa 100 Gewichtsteilen Wasser-,gelöst, die Lösung fil triert und der Farbstoff mit Kochsalz aus- g:esalzen:
Der rote Farbstoff besitzt folgende Konstitution
EMI0001.0038
und färbt Wolle aus saurem Bade in sehr klaren blaustichigroten Tönen, die durch Nachchromieren in ihren Echtheiten verbes sert werden.
<B> Additional patent </B> to the main patent No. 198713. Process for the preparation of an honorable dye of the triarylmethane series. The subject of this additional patent is a process for the preparation of a chromable dye of the triarylmethane series, which is characterized by
that methylethylamino - m - phenol - co - sulfonate sodium is condensed with 5-Ogytrimellitic anhydride. <I> '</I> Example: 65 parts by weight of 5-ogytrimellitic anhydride are heated with <B> 82 </B> parts by weight of methylamino-m-phenol-u) -sulphonic acid at 180-190 ° C. for 4 hours .
To remove the excess 5-ogytrimellitic acid, the pulverized melt is treated with 200 parts by weight of alcohol under heat for a short time and, after cooling, is suctioned off. The residue is dissolved in about 100 parts by weight of water, the solution is filtered and the dye is salted out with common salt:
The red dye has the following constitution
EMI0001.0038
and dyes wool from an acid bath in very clear blue-tinged red tones, the fastness of which is improved by re-chrome plating.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE203053X | 1936-02-26 | ||
CH198713T | 1938-12-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH203053A true CH203053A (en) | 1939-02-15 |
Family
ID=25723138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH203053D CH203053A (en) | 1936-02-26 | 1937-02-18 | Process for the preparation of a chromable dye of the triarylmethane series. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH203053A (en) |
-
1937
- 1937-02-18 CH CH203053D patent/CH203053A/en unknown
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