GB272232A - Process for the manufacture of 1.3-dioxy-4-carboxy-6-phenylethyl-benzene - Google Patents
Process for the manufacture of 1.3-dioxy-4-carboxy-6-phenylethyl-benzeneInfo
- Publication number
- GB272232A GB272232A GB14935/27A GB1493527A GB272232A GB 272232 A GB272232 A GB 272232A GB 14935/27 A GB14935/27 A GB 14935/27A GB 1493527 A GB1493527 A GB 1493527A GB 272232 A GB272232 A GB 272232A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dioxy
- phenylethylbenzene
- carboxy
- carbon dioxide
- solution
- 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
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/15—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction of organic compounds with carbon dioxide, e.g. Kolbe-Schmitt synthesis
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
272,232. Hoffmann- La Roche & Co., Akt.-Ges., F. June 4, 1926, [Convention date]. 1: 3 - Dioxy - 4-carboxy-6-phenylethylbenzene, which is suitable as an internal disinfectant, is prepared by the action of carbon dioxide upon 1 : 3-dioxy-6-phenylethylbenzene in the presence of alkali. In one example, an aqueous sodium bicarbonate solution of the 1 : 3-dioxy-6-phenylethylbenzene is treated with carbon dioxide at elevated temperature and pressure and the carboxylic acid is separated from the resulting solution by means of mineral acid. According to a second example, 1: 3-dioxy-6-phenylethylbenzene is dissolved in alcoholic soda which is then evaporated to dryness in vacuo. The dried residue is subjected to the action of carbon dioxide under pressure and at elevated temperature and concentrated hydrochloric acid and benzol then added. The 1: 3-dioxy-4-carboxy-6-phenylethylbenzene is extracted from the benzol solution as the sodium salt by means of aqueous sodium bicarbonate. 1 : 3-Dioxy-6-phenylethylbenzene is prepared by condensation of resorcin with benzylcyanide and reduction of the resulting product. The Specification as open to inspection under Sect. 91 (3) (a) comprises also an additional example in which the product is worked up by dissolving the mass obtained in treating with carbon dioxide, as in the second example, extracting with ether and precipitating the 1 : 3-dioxy-4-carboxy-6-phenylethylbenzene with hydrochloric acid as before. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE272232X | 1926-06-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB272232A true GB272232A (en) | 1927-10-20 |
Family
ID=6009236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14935/27A Expired GB272232A (en) | 1926-06-04 | 1927-06-07 | Process for the manufacture of 1.3-dioxy-4-carboxy-6-phenylethyl-benzene |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB272232A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2756256A (en) * | 1953-07-09 | 1956-07-24 | Dow Chemical Co | Phenyl dihydroxybenzoic acids |
-
1927
- 1927-06-07 GB GB14935/27A patent/GB272232A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2756256A (en) * | 1953-07-09 | 1956-07-24 | Dow Chemical Co | Phenyl dihydroxybenzoic acids |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB272232A (en) | Process for the manufacture of 1.3-dioxy-4-carboxy-6-phenylethyl-benzene | |
| GB173479A (en) | Improved process of purifying lactic acid | |
| GB416892A (en) | Process for the manufacture of dihydroresorcinol | |
| SU7029A1 (en) | The method of processing a mixture of cresols | |
| US1490020A (en) | Process of preparation of soluble derivatives of dioxyarsenoanilin | |
| GB381200A (en) | Process for the production of synthetic resins | |
| GB286210A (en) | Method of treating waste liquor | |
| GB437758A (en) | Improvements in and relating to the concentration of latex | |
| GB263311A (en) | Process for the production of camphene from pinene hydrochloride | |
| SU62095A1 (en) | The method of producing pyridine amino derivatives | |
| GB737363A (en) | Method for the production of water and/or alkali soluble cellulose derivatives | |
| GB393635A (en) | A method of obtaining a substance which reduces hyperglycemia | |
| GB410649A (en) | Process of preparing purified mucins and solutions thereof | |
| GB354380A (en) | Improvements in or relating to the production of insulating materials | |
| GB220957A (en) | Process for the manufacture of artificial horn | |
| GB519600A (en) | Improvements in and relating to the treatment of cellulosic material | |
| GB270729A (en) | ||
| GB220697A (en) | A process for the extraction of the fat-soluble vitamin | |
| GB292133A (en) | Process for obtaining sterols | |
| GB412776A (en) | A process for the production of caustic potash and oxalic acid | |
| GB266684A (en) | Process for treating acetic acid liquor | |
| GB218014A (en) | Manufacture of soluble acid calcium salts of inosite-phosphoricacid | |
| GB270283A (en) | Process for the production of chlorthymol (1-methyl-3-oxy-4-isopropyl-6-chlor-benzene) | |
| GB274501A (en) | Manufacture of condensation products of arylamines | |
| GB224509A (en) | A process for the treatment of sulphite-cellulose waste liquor |