GB325387A - The manufacture of 1-halogen-2-amino-naphthalene sulphonic acids - Google Patents
The manufacture of 1-halogen-2-amino-naphthalene sulphonic acidsInfo
- Publication number
- GB325387A GB325387A GB471129A GB471129A GB325387A GB 325387 A GB325387 A GB 325387A GB 471129 A GB471129 A GB 471129A GB 471129 A GB471129 A GB 471129A GB 325387 A GB325387 A GB 325387A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aminonaphthalene
- sulphonic acid
- halogen
- chlorinating
- chloro
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
325,387. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Feb. 12, 1929. 1-Halogen-2-aminonaphthalene sulphonic acids are prepared by acylating a 2-aminonaphthalene mono- or di-sulphonic acid, and treating the compound obtained with a halogenating agent, in an acidic medium, and splitting off the acyl group. In examples the following products are specified : (1) 1-chloro-2-aminonaphthalene-6-sulphonic acid from 2-aminonaphthalene-6-sulphonio acid by chlorinating the acetyl derivative; (2) 1-chloro-2- aminonaphthalene-8-sulphonic acid from 2-aminonaphthalene-8-sulphonic acid, by chlorinating the acetyl derivative; (3) 1-chloro-2-aminonaphthalene-5-sulphonic acid from 2-aminonaphthalene-5- sulphonic acid, by chlorinating the acetyl compound; and (4) 1-bromo-2-aminonaphthalene-7- sulphonic acid from 2-aminonaphthalene-7-sulphonic acid, by brominating the toluene sulphochloride compound.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB471129A GB325387A (en) | 1929-02-12 | 1929-02-12 | The manufacture of 1-halogen-2-amino-naphthalene sulphonic acids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB471129A GB325387A (en) | 1929-02-12 | 1929-02-12 | The manufacture of 1-halogen-2-amino-naphthalene sulphonic acids |
Publications (1)
Publication Number | Publication Date |
---|---|
GB325387A true GB325387A (en) | 1930-02-20 |
Family
ID=9782343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB471129A Expired GB325387A (en) | 1929-02-12 | 1929-02-12 | The manufacture of 1-halogen-2-amino-naphthalene sulphonic acids |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB325387A (en) |
-
1929
- 1929-02-12 GB GB471129A patent/GB325387A/en not_active Expired
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