GB1453405A - Rt preparation of 3-amino-2,5-dichlorobenzoic acid and deriva tives thereof - Google Patents
Rt preparation of 3-amino-2,5-dichlorobenzoic acid and deriva tives thereofInfo
- Publication number
- GB1453405A GB1453405A GB1198575A GB1198575A GB1453405A GB 1453405 A GB1453405 A GB 1453405A GB 1198575 A GB1198575 A GB 1198575A GB 1198575 A GB1198575 A GB 1198575A GB 1453405 A GB1453405 A GB 1453405A
- Authority
- GB
- United Kingdom
- Prior art keywords
- amino
- dichlorobenzoic acid
- preparation
- march
- reduction
- 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
1453405 3 - Amino - 2,5 - dichlorobenzoic acid CHINOIN GYOGYSZER ES VEGYESZETI TERMEKEK GYARA RT 21 March 1975 [22 March 1974] 11985/75 Heading C2C A process for the preparation of 3-amino-2,5- dichlorobenzoic acid or an alkyl ester or a salt thereof, comprises subjecting an alkyl 3-nitro- 2,5-dichlorobenzoate to reduction and optionally hydrolysing the reduced product. The process is preferably carried out in an aqueous medium. In order to improve the solubility of the starting material it may be suspended in a mixture of water and an appropriate organic solvent, preferably in aqueous acetone. The reduction is preferably carried out at from about 20‹ to 30‹ C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HUCI001464 | 1974-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1453405A true GB1453405A (en) | 1976-10-20 |
Family
ID=10994514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1198575A Expired GB1453405A (en) | 1974-03-22 | 1975-03-21 | Rt preparation of 3-amino-2,5-dichlorobenzoic acid and deriva tives thereof |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS50157332A (en) |
| AT (1) | AT343633B (en) |
| BG (1) | BG24665A3 (en) |
| DD (1) | DD119212A1 (en) |
| GB (1) | GB1453405A (en) |
| PL (1) | PL96687B1 (en) |
| SU (1) | SU584762A3 (en) |
-
1975
- 1975-03-12 BG BG7500029241A patent/BG24665A3/en unknown
- 1975-03-20 JP JP3304775A patent/JPS50157332A/ja active Pending
- 1975-03-20 DD DD18490675A patent/DD119212A1/xx unknown
- 1975-03-21 PL PL17895375A patent/PL96687B1/en unknown
- 1975-03-21 GB GB1198575A patent/GB1453405A/en not_active Expired
- 1975-03-21 SU SU7502115543A patent/SU584762A3/en active
- 1975-03-21 AT AT217475A patent/AT343633B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| BG24665A3 (en) | 1978-04-12 |
| ATA217475A (en) | 1977-10-15 |
| DD119212A1 (en) | 1976-04-12 |
| PL96687B1 (en) | 1978-01-31 |
| JPS50157332A (en) | 1975-12-19 |
| AT343633B (en) | 1978-06-12 |
| SU584762A3 (en) | 1977-12-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 746 | Register noted 'licences of right' (sect. 46/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |