GB285389A - Manufacture of vat-dyestuffs of the 2-thionaphthene-3-indolindigo series - Google Patents
Manufacture of vat-dyestuffs of the 2-thionaphthene-3-indolindigo seriesInfo
- Publication number
- GB285389A GB285389A GB467028A GB467028A GB285389A GB 285389 A GB285389 A GB 285389A GB 467028 A GB467028 A GB 467028A GB 467028 A GB467028 A GB 467028A GB 285389 A GB285389 A GB 285389A
- Authority
- GB
- United Kingdom
- Prior art keywords
- amino
- dichlor
- thionaphthene
- oxythionaphthene
- vat
- 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)
- Developing Agents For Electrophotography (AREA)
- Coloring (AREA)
- Cosmetics (AREA)
Abstract
285,389. I. G. Farbenindustrie Akt.- Ges. Feb. 14, 1927, [Convention date]. 2-Thionaphthene-3-indole-indigoid dyes are obtained by condensing 6-amino-oxythionaphthene with a 5 : 7-dihalogenisatin and then introducing two chlorine atoms into the 5 : 7-positions on the thionaphthene side by means of sulphuryl chloride, or by condensing 5: 7-dichlor-6-aminooxythionaphthene with a 5 :7-dihalogenisatin. According to examples, (1) , 6-amino-oxythionaphthene is condensed with 5 : 7-dibromisatin in acetic acid containing a little hydrochloric acid, or with 5: 7-dichlorisatin in alcohol in presence of sodium carbonate, and the product chlorinated with sulphuryl chloride in mono- or di-chlorbenzene : (2) 5 : 7-dichlor-6-amino-oxythionaphthene is condensed with 5 : 7-dibromisatin. The products dye cotton from the vat in brown shades of greater purity and fastness to kier-boiling than those given by the brown dyestuffs of Specification 28170/09. 5 : 7-Dichlor-6-amino-oxythionaphthene is obtained by chlorinating 4-nitro-1-aminobenzene, acetylating and reducing the resulting 4-nitro- 2 : 6-dichlor-1-aminobenzene to obtain 4-amino- 2 6-dichlor-1-acetylaminobenzene, and subjecting the latter to the action of sulphur chloride according to Specifications 17417/14 and 18292/14. The 2-amino-4 : 6-dichlor-5-acetylamino-1-thiophenol is treated with chloracetic acid to obtain the corresponding thioglycollic acid which yields the thionaphthene, by ring closure, by the methods of Specification 11173/06. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the introduction of chlorine into the 6-amino-2-thionaphthene-5: 7- dihalogen-3-indole-indigo, by any means. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEI30323D DE489087C (en) | 1927-02-14 | 1927-02-14 | Process for the preparation of 5íñ7-dichloro-6-amino-2-thionaphthene-5'7'-dihalo-3-indolindigos |
Publications (1)
Publication Number | Publication Date |
---|---|
GB285389A true GB285389A (en) | 1928-04-25 |
Family
ID=7187591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB467028A Expired GB285389A (en) | 1927-02-14 | 1928-02-14 | Manufacture of vat-dyestuffs of the 2-thionaphthene-3-indolindigo series |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH132622A (en) |
DE (1) | DE489087C (en) |
FR (1) | FR648633A (en) |
GB (1) | GB285389A (en) |
-
1927
- 1927-02-14 DE DEI30323D patent/DE489087C/en not_active Expired
-
1928
- 1928-02-06 CH CH132622D patent/CH132622A/en unknown
- 1928-02-10 FR FR648633D patent/FR648633A/en not_active Expired
- 1928-02-14 GB GB467028A patent/GB285389A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR648633A (en) | 1928-12-12 |
CH132622A (en) | 1929-04-30 |
DE489087C (en) | 1930-01-27 |
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