GB387956A - Improvements in or relating to the manufacture of new dyestuffs of the triarylmethane series - Google Patents
Improvements in or relating to the manufacture of new dyestuffs of the triarylmethane seriesInfo
- Publication number
- GB387956A GB387956A GB25355/32A GB2535532A GB387956A GB 387956 A GB387956 A GB 387956A GB 25355/32 A GB25355/32 A GB 25355/32A GB 2535532 A GB2535532 A GB 2535532A GB 387956 A GB387956 A GB 387956A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- condensed
- oxidized
- prepared
- triarylmethane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- C09B11/12—Amino derivatives of triarylmethanes without any OH group bound to an aryl nucleus
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
Triarylmethane dyes are prepared by the introduction of the group -CH2-CH2-SO3H into the primary or secondary amino groups of a triarylmethane compound according to known methods. Thus the triarylmethane compounds may be condensed with a halogenethanesulphonic acid, or an aromatic aminosulphonic acid of the formula <FORM:0387956/IV/1> wherein R represents hydrogen, alkyl, aralkyl or aryl, may be condensed with the customary components and the leuco-dyestuffs oxidized. The products have an increased solubility in water, and dye wool and silk in clear reddish-violet to blue to green shades. In examples (1) p-diethylaminobenzaldehyde is condensed with 2 mols. of o-tolyltaurine in weak sulphuric acid solution, and the leuco-product oxidized, for example by adding lead peroxide: (2) ethylphenyltaurine is condensed with formaldehyde and the diphenylmethane oxidized with diethylaniline in acid bichromate; alternatively this dyestuff is prepared by condensing p-diethylaminobenzaldehyde with 2 mols. of ethylphenyltaurine and oxidizing the product: (3) tetramethyldiaminodiphenylmethane-hydrol is heated with m-tolylethyltaurine in weakly acid solution and the product oxidized by lead peroxide: (4) tetraethyl-4,4<1>-diamino-3<11>-triphenylmethane is heated with sodium chlorethanesulphonic acid. The aromatic aminosulphonic acids employed as starting materials are prepared by condensing the appropriate aromatic primary or secondary amine with chlorethanesulphonic acid in presence of an acid binding agent.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEI42573D DE574021C (en) | 1931-09-12 | 1931-09-12 | Process for the preparation of triarylmethane dyes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB387956A true GB387956A (en) | 1933-02-16 |
Family
ID=6371212
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25355/32A Expired GB387956A (en) | 1931-09-12 | 1932-09-12 | Improvements in or relating to the manufacture of new dyestuffs of the triarylmethane series |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE390927A (en) |
DE (1) | DE574021C (en) |
FR (2) | FR44375E (en) |
GB (1) | GB387956A (en) |
NL (2) | NL35992C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2445042A (en) * | 1943-07-28 | 1948-07-13 | Du Pont | Method of treating oriented acrylonitrile structures |
-
0
- NL NL33465D patent/NL33465C/xx active
- FR FR742756D patent/FR742756A/fr not_active Expired
- BE BE390927D patent/BE390927A/xx unknown
- NL NL35992D patent/NL35992C/xx active
-
1931
- 1931-09-12 DE DEI42573D patent/DE574021C/en not_active Expired
-
1932
- 1932-09-12 GB GB25355/32A patent/GB387956A/en not_active Expired
-
1933
- 1933-12-20 FR FR44375D patent/FR44375E/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2445042A (en) * | 1943-07-28 | 1948-07-13 | Du Pont | Method of treating oriented acrylonitrile structures |
Also Published As
Publication number | Publication date |
---|---|
NL35992C (en) | |
BE390927A (en) | |
NL33465C (en) | |
FR742756A (en) | 1933-03-15 |
FR44375E (en) | 1934-12-29 |
DE574021C (en) | 1933-04-07 |
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