GB329741A - Manufacture of naphthylamine-carboxylic acid derivatives - Google Patents
Manufacture of naphthylamine-carboxylic acid derivativesInfo
- Publication number
- GB329741A GB329741A GB821929A GB821929A GB329741A GB 329741 A GB329741 A GB 329741A GB 821929 A GB821929 A GB 821929A GB 821929 A GB821929 A GB 821929A GB 329741 A GB329741 A GB 329741A
- Authority
- GB
- United Kingdom
- Prior art keywords
- naphthalene
- hydroxy
- naphthylamine
- carboxylic acid
- acid derivatives
- 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
329,741. Imray, O. Y., (I. G. Farbenindustrie Akt.-Ges.). March 13, 1929. Naphthylamine carboxylic acid derivatives are made by treating the alkali-metal salt of a 2 (4<1> hydroxyarylamino)-naphthalene in which the aryl group has the 3'-position free and may carry one alkyl group, with carbon dioxide at a raised temperature and pressure. The starting materials may be obtained .by condensing 2-hydroxy-3- naphthoic acid with an ammophenol or ammocresol in which the hydroxyl is pto the amino group, and splitting off the 3-carboxyl group. The carboxylic acids, including the alkyl derivatives, are used as dyestuff intermediates. In examples, 2-(4<1> hydroxyphenylamino) naphthalene, 2-(4<1> hydroxy-2<1>-methylphenylamino)naphthalene, 2-(4<1> hydroxy-31 methylphenylamino) naphthalene, are treated in caustic alkali solution with carbon dioxide under pressure, to give the corresponding 3'-carboxylic acids.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB821929A GB329741A (en) | 1929-03-13 | 1929-03-13 | Manufacture of naphthylamine-carboxylic acid derivatives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB821929A GB329741A (en) | 1929-03-13 | 1929-03-13 | Manufacture of naphthylamine-carboxylic acid derivatives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB329741A true GB329741A (en) | 1930-05-29 |
Family
ID=9848211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB821929A Expired GB329741A (en) | 1929-03-13 | 1929-03-13 | Manufacture of naphthylamine-carboxylic acid derivatives |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB329741A (en) |
-
1929
- 1929-03-13 GB GB821929A patent/GB329741A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB329741A (en) | Manufacture of naphthylamine-carboxylic acid derivatives | |
| GB855153A (en) | Spin-dyeing of acrylonitrile polymers | |
| GB439294A (en) | Manufacture of dressed textile materials | |
| GB460248A (en) | Manufacture of 2-aminoquinizarin and the substitution products thereof | |
| GB493314A (en) | Improvements in the manufacture and production of azomethine dyestuffs containing metal | |
| SU68330A1 (en) | The method of obtaining alpha-oxyanthraquinone | |
| GB328292A (en) | Improvements relating to the manufacture of azo dyestuffs | |
| GB262987A (en) | Process for producing fast printings | |
| GB461189A (en) | The manufacture of new hydroxycarboxylic acids | |
| GB336394A (en) | Manufacture of arylamino-phenol-carboxylic acids | |
| GB361597A (en) | Improvements in the manufacture and production of dimethylol acetone and its homologues | |
| GB321737A (en) | Process for the manufacture of dyestuffs on the fibre | |
| IMAI | STUDIES ON MITSUMATA DISTINCTION BETWEEN MITSUMATA AND GAMPI FIBER | |
| GB297366A (en) | Improvements in and relating to the production of dyestuff intermediates | |
| GB439053A (en) | Production of resorcinol | |
| GB257815A (en) | Manufacture of 2-oxynaphthalene-6-carboxylic acid | |
| GB476493A (en) | Improvements in the manufacture and production of azo dyestuffs | |
| GB500415A (en) | Manufacture of black trisazo dyestuffs | |
| GB302212A (en) | Process for the manufacture of n-ªÏ-aminoalkylaminonaphthalene carboxylic acids | |
| GB722370A (en) | Improvements in the production of condensation products having tanning action | |
| GB385620A (en) | Process for the manufacture of azo-dyestuffs and intermediate products therefor | |
| GB395365A (en) | The manufacture of a new dihydroxy naphthalene dicarboxylic acid | |
| GB448502A (en) | Manufacture of 3-amino-quinolines | |
| GB363027A (en) | Improvements in the manufacture and production of anthraquinone derivatives | |
| GB697709A (en) | Improvements in the production of acid disazo dyestuffs |