GB706177A - Improvements in and relating to the manufacture of p-aminosalicylic acid - Google Patents
Improvements in and relating to the manufacture of p-aminosalicylic acidInfo
- Publication number
- GB706177A GB706177A GB15818/50A GB1581850A GB706177A GB 706177 A GB706177 A GB 706177A GB 15818/50 A GB15818/50 A GB 15818/50A GB 1581850 A GB1581850 A GB 1581850A GB 706177 A GB706177 A GB 706177A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- manufacture
- aminosalicylic acid
- ethylene glycol
- per cent
- 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
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C229/00—Compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C229/52—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton
- C07C229/54—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton with amino and carboxyl groups bound to carbon atoms of the same non-condensed six-membered aromatic ring
- C07C229/56—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton with amino and carboxyl groups bound to carbon atoms of the same non-condensed six-membered aromatic ring with amino and carboxyl groups bound in ortho-position
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C227/14—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from compounds containing already amino and carboxyl groups or derivatives thereof
- C07C227/18—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from compounds containing already amino and carboxyl groups or derivatives thereof by reactions involving amino or carboxyl groups, e.g. hydrolysis of esters or amides, by formation of halides, salts or esters
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Potassium 2-hydroxy-4-aminobenzoate is obtained by heating m-aminophenol at atmospheric pressure with carbon dioxide and at least 2 mols. of potassium carbonate above 160 DEG C. in the absence of water, but with up to 50 per cent. of ethylene glycol. In an example a temperature of 175 DEG C. and about 10 per cent. of the charge of ethylene glycol was used. Specification 636,347 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB15818/50A GB706177A (en) | 1950-06-24 | 1950-06-24 | Improvements in and relating to the manufacture of p-aminosalicylic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB15818/50A GB706177A (en) | 1950-06-24 | 1950-06-24 | Improvements in and relating to the manufacture of p-aminosalicylic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
GB706177A true GB706177A (en) | 1954-03-24 |
Family
ID=10066065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15818/50A Expired GB706177A (en) | 1950-06-24 | 1950-06-24 | Improvements in and relating to the manufacture of p-aminosalicylic acid |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB706177A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012083753A1 (en) * | 2010-12-25 | 2012-06-28 | 浙江华海药业股份有限公司 | Preparation of 5-aminosalicylic acid by gas phase catalytic carboxylation |
-
1950
- 1950-06-24 GB GB15818/50A patent/GB706177A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012083753A1 (en) * | 2010-12-25 | 2012-06-28 | 浙江华海药业股份有限公司 | Preparation of 5-aminosalicylic acid by gas phase catalytic carboxylation |
CN103201255A (en) * | 2010-12-25 | 2013-07-10 | 浙江华海药业股份有限公司 | Preparation of 5-aminosalicylic acid by gas phase catalytic carboxylation |
CN103201255B (en) * | 2010-12-25 | 2014-11-19 | 浙江华海药业股份有限公司 | Preparation of 5-aminosalicylic acid by gas phase catalytic carboxylation |
US9067867B2 (en) | 2010-12-25 | 2015-06-30 | Zhejiang Huahai Pharmaceutical Co., Ltd. | Preparation of 5-aminosalicylic acid by gas phase catalytic carboxylation |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB928812A (en) | Process for the production of cyclododecatri-1,5,9-enes | |
GB706177A (en) | Improvements in and relating to the manufacture of p-aminosalicylic acid | |
GB411009A (en) | Improvements in and relating to the production of amino acids from materials containing keratin | |
GB621654A (en) | Improvements in or relating to the production of 1, 1, 1-trifluoropropan-2-ol | |
GB697965A (en) | Improvements in and relating to the manufacture of p-aminosalicyclic acid | |
GB585655A (en) | Improvements in or relating to the production of monothioethylene glycol | |
GB772345A (en) | Improvements in or relating to preparation of polyvinylamine | |
GB778580A (en) | Improvements in or relating to the preparation of 1,1,4,4-tetrafluoro-1,3-butadiene | |
GB958866A (en) | Production of ethylene sulphide | |
GB977727A (en) | Production of monoglycol terephthalate | |
GB720091A (en) | Improvements in or relating to production of olefinic c.f. | |
GB730602A (en) | Formaldehyde solutions | |
GB696132A (en) | Improvements in or relating to the manufacture of 2-hydroxy-4-aminobenzoic acid | |
GB872286A (en) | Production of corundum | |
GB616456A (en) | Improvements in or relating to the production of normal lead dinitroresorcinate | |
GB420652A (en) | Improvements in or relating to the manufacture of hydrogen | |
GB771180A (en) | 1,4-naphthoquinone addition product | |
GB642038A (en) | A process of manufacturing humus products | |
GB436661A (en) | Manufacture of naphthalene derivatives | |
GB786007A (en) | Thiazolo-pyrimidines | |
GB939905A (en) | A process for preparing a penillic acid and salts thereof | |
GB451130A (en) | Improved process for direct production of propylene oxide | |
GB637172A (en) | Improvements in or relating to the production of strontium peroxide | |
GB656746A (en) | Improvements in and relating to the manufacture of 2-ethoxy benzamide | |
GB740321A (en) | Improvements in or relating to aneurin derivatives |