http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-501476-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6ecb2c795fb082222c2bbc3195cf034d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D277-72 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D277-72 |
| filingDate | 1938-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1939-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-501476-A |
| titleOfInvention | Method of preparing mercapto aryl thiazoles |
| abstract | 501,476. Mercapto aryl thiazoles. WINGFOOT CORPORATION. Feb. 4, 1938, No. 3525. Convention. date, May 5, 1937. [Class 2 (iii)] Mercapto aryl thiazoles are prepared by reacting sulphur, a primary aromatic amine having a free ortho position, and an acid of the X # formula H-C-X-H where X represents oxygen or sulphur. The reaction may be carried out in one step, or intermediates may be progressively formed which are then transformed into the mercapto aryl thiazole. Acids mentioned as suitable are formic acid, thio formic acid, thiol formic acid, and dithio formic acid. Primary amines mentioned, include aniline, the toluidines, xylidines, alpha and beta naphthylamines, anisidines, phenetidines, ortho chlor aniline, amino-biphenyl, and para phenylene diamine. In an example, aniline and sulphur are heated together to form diphenyl sulphide, which is converted into diformamide by' heating with formic acid. This is then treated at elevated temperature with formic acid and sulphur to give the required 2- mercaptobenzothiazole. The reaction may be performed in one step by heating the aniline, formic acid and sulphur together in one operation. The preferred reaction temperature is from 220 to 250‹ C. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2014029320-A1 |
| priorityDate | 1937-05-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.