GB316962A - Process for the manufacture of 1-amino carbazole and derivatives thereof - Google Patents
Process for the manufacture of 1-amino carbazole and derivatives thereofInfo
- Publication number
- GB316962A GB316962A GB1342228A GB1342228A GB316962A GB 316962 A GB316962 A GB 316962A GB 1342228 A GB1342228 A GB 1342228A GB 1342228 A GB1342228 A GB 1342228A GB 316962 A GB316962 A GB 316962A
- Authority
- GB
- United Kingdom
- Prior art keywords
- derivatives
- hydroxycarbazole
- aminocarbazole
- ammonia
- prepared
- 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
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/56—Ring systems containing three or more rings
- C07D209/80—[b, c]- or [b, d]-condensed
- C07D209/82—Carbazoles; Hydrogenated carbazoles
- C07D209/88—Carbazoles; Hydrogenated carbazoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the ring system
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Indole Compounds (AREA)
Abstract
316,962. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). May 7, 1928. Samples furnished. Carbazole derivatives.-1-aminocarbazole and derivatives thereof are prepared from 1-hydroxy carbazole and its derivatives by the customary methods, for example by heating with ammonium bisulphite solution under pressure. In place of ammonium bisulphite solution aqueous solutions of zinc chluride ammonia, ammonium chloride and ammonia or sodium bisulphite and ammonia may be used. In examples substances prepared are 1-aminocarbazole from 1-hydroxycarbazole and 3 :-6-dibromo-1-aminocarbazole from 3 : 6-dibromo-1-hydroxycarbazole (prepared by treating 1-hydroxycarbazole with bromine in glacial acetic acid or carbon disulphide, preferably with the addition of a trace of iodine and in the presence of sunlight).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1342228A GB316962A (en) | 1928-05-07 | 1928-05-07 | Process for the manufacture of 1-amino carbazole and derivatives thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1342228A GB316962A (en) | 1928-05-07 | 1928-05-07 | Process for the manufacture of 1-amino carbazole and derivatives thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
GB316962A true GB316962A (en) | 1929-08-07 |
Family
ID=10022673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1342228A Expired GB316962A (en) | 1928-05-07 | 1928-05-07 | Process for the manufacture of 1-amino carbazole and derivatives thereof |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB316962A (en) |
-
1928
- 1928-05-07 GB GB1342228A patent/GB316962A/en not_active Expired
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