GB523294A - Manufacture of new azo compounds - Google Patents
Manufacture of new azo compoundsInfo
- Publication number
- GB523294A GB523294A GB3155839A GB3155839A GB523294A GB 523294 A GB523294 A GB 523294A GB 3155839 A GB3155839 A GB 3155839A GB 3155839 A GB3155839 A GB 3155839A GB 523294 A GB523294 A GB 523294A
- Authority
- GB
- United Kingdom
- Prior art keywords
- amino
- group
- reducing
- nitro
- benzoylaminoanisole
- 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
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
- C09B29/08—Amino benzenes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
523,294. Azo dyes. ELLIS, G. H., OLPIN, H. C., and WRIGHT, J. Dec. 31, 1938, Nos. 31558/39, (divided out of 523,287) and 31660/39, (divided out of 529,454). [Class 2 (iii)] Aminoazo compounds are obtained by coupling diazotized 2-, 3- or 4- nitraniline with an unsulphonated primary amine of the benzene series coupling in p-position to the primary amino group and containing an acidylamino group in m-position to the primary amino group and an alkyloxy group in p-position to the acidylamino group. Specified coupling components are the 2-amino-4-acetylaminoderivatives of anisole, phenetole and #-hydroxyethoxybenzene, 2-amino-4-benzoylaminoanisole and 2-amino-4-acetylmethylaminoanisole. The nitroaminoazo products and the diaminoazo products obtainable therefrom by reduction of the nitro group are suitable for the preparation of dis- and tris-azo dyes by the processes described in Specifications 523,287 and 529,454. An example relates to the preparation of the dyestuff, 4-nitraniline# 2-amino-4-acetylaminoanisole. Specifications 214,516 and 245,790, [both in Class 2 (iii)], also are referred to. 2- Amino-4-acetylaminophenetole is obtained by reducing the nitro group in the product of nitration of 4-acetylaminophenetole. 2- Amino-4-benzoylaminoanisole is obtained by reducing the nitro group in the product of benzoylation of 2-nitro-4-aminanisole. 2- Amino-4-acetylmethylaminoanisole is obtained by reducing the corresponding 2-nitrocompound.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3155839A GB523294A (en) | 1938-12-31 | 1938-12-31 | Manufacture of new azo compounds |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3155839A GB523294A (en) | 1938-12-31 | 1938-12-31 | Manufacture of new azo compounds |
Publications (1)
Publication Number | Publication Date |
---|---|
GB523294A true GB523294A (en) | 1940-07-10 |
Family
ID=10324915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3155839A Expired GB523294A (en) | 1938-12-31 | 1938-12-31 | Manufacture of new azo compounds |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB523294A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4257943A (en) * | 1977-08-16 | 1981-03-24 | Hoechst Aktiengesellschaft | Disperse azo dyestuffs and process for preparation and their use |
-
1938
- 1938-12-31 GB GB3155839A patent/GB523294A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4257943A (en) * | 1977-08-16 | 1981-03-24 | Hoechst Aktiengesellschaft | Disperse azo dyestuffs and process for preparation and their use |
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