GB283118A - Manufacture of indigoid vat dyestuffs - Google Patents
Manufacture of indigoid vat dyestuffsInfo
- Publication number
- GB283118A GB283118A GB179/28A GB17928A GB283118A GB 283118 A GB283118 A GB 283118A GB 179/28 A GB179/28 A GB 179/28A GB 17928 A GB17928 A GB 17928A GB 283118 A GB283118 A GB 283118A
- Authority
- GB
- United Kingdom
- Prior art keywords
- methyl
- chlor
- dimethylisatin
- toluidine
- isatinarylides
- 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
- C09B7/00—Indigoid dyes
- C09B7/06—Indone-thionapthene indigos
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Indole Compounds (AREA)
Abstract
283,118. I. G. Farbenindustrie Akt.- Ges. Jan. 3, 1927, [Convention date]. Addition to 282,805. 2-Thionaphthene-2-indole-indigo dyes are obtained by condensing a nuclear substituted 3- oxythionaphthene with a 5: 7-dimethylisatin- 2<1> : 4<1>-dimethylamide, or a derivative thereof having two halogen atoms or two methyl groups in the 4- and 51-positions, or with a 5-halogen-7- methylisatin-2<1>-methyl-4<1>-halogenanilide containing two halogen atoms or two methyl groups in the 4- and 5'-positions. According to examples, dyestuffs are obtained from the following components : - 5-chlor-4: 7-dimethylisatin-4<1>-chlor- 2<1> : 5<1>-dimethylanilide and 4-methyl-6-chlor- or 5- chlor-7-methyl- or 4-methyl-5: 7-dichloroxythionaphthene; 5: 7-dimethylisatin-2<1> : 4<1>-dimethylanilide, or 4: 5: 7-trimethylisatin-2<1>: 4<1> : 5<1>-trimethylanilide, or 4 5-dichlor-7-methylisatin- 4<1> : 5<1>-dichlor-2<1>-methylanilide, and 4: 7-dimethyl-5-chloroxythionaphthene. The products dye cotton in violet shades from the vat. Isatinarylides. - The above-mentioned isatinarylides are obtainable by the Sandmeyer process, by way of the thiourea from the corresponding amines, for example from unsymmetrical mxylidine, pseudo-cumidine, 4:5-dichor-2-toluidine, 4-methyl-5-chlor-2-toluidine, or 4-chlor-5- methyl-2-toluidine.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE283118X | 1927-01-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB283118A true GB283118A (en) | 1929-03-28 |
Family
ID=6044484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB179/28A Expired GB283118A (en) | 1927-01-03 | 1928-01-03 | Manufacture of indigoid vat dyestuffs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB283118A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5989053A (en) * | 1994-01-12 | 1999-11-23 | Berg Technology, Inc. | Contact element for an electrical connector |
-
1928
- 1928-01-03 GB GB179/28A patent/GB283118A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5989053A (en) * | 1994-01-12 | 1999-11-23 | Berg Technology, Inc. | Contact element for an electrical connector |
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