GB340550A - Process for the manufacture of derivatives of carbazole - Google Patents
Process for the manufacture of derivatives of carbazoleInfo
- Publication number
- GB340550A GB340550A GB2648129A GB2648129A GB340550A GB 340550 A GB340550 A GB 340550A GB 2648129 A GB2648129 A GB 2648129A GB 2648129 A GB2648129 A GB 2648129A GB 340550 A GB340550 A GB 340550A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aminocarbazole
- nitrocarbazole
- nitro
- amino
- hydroxycarbazole
- 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
Hydroxy- or nitro-substituted carbazoles are obtained by removing amino groups by known methods from substituted carbazoles containing amino groups in addition to hydroxy or nitro groups. In examples, (1) 2-nitrocarbazole is obtained by diazotizing 2-nitro-3-aminocarbazole and heating the diazo solution; on reduction it yields 2-aminocarbazole, the formyl, acetyl, benzoyl, and p-toluenesulphonyl and phenyl derivatives of which are described, (2) 4-nitrocarbazole is similarly obtained from 3-amino-4-nitrocarbazole; on reduction it yields 4-aminocarbazole, and (3) 1-hydroxycarbazole is similarly obtained from 1-amino-8-hydroxycarbazole, which may be made by melting 1-aminocarbazole-8-sulphonic acid (Specification 340,625), advantageously in the form of its acetyl compound, with caustic potash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2648129A GB340550A (en) | 1929-08-30 | 1929-08-30 | Process for the manufacture of derivatives of carbazole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2648129A GB340550A (en) | 1929-08-30 | 1929-08-30 | Process for the manufacture of derivatives of carbazole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB340550A true GB340550A (en) | 1930-12-30 |
Family
ID=10244316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2648129A Expired GB340550A (en) | 1929-08-30 | 1929-08-30 | Process for the manufacture of derivatives of carbazole |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB340550A (en) |
-
1929
- 1929-08-30 GB GB2648129A patent/GB340550A/en not_active Expired
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