http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S59175479-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_25ccaa36c6ec4f8fc10119358b3f65cb |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D277-68 |
| filingDate | 1983-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_53cfeb56ee35a746b82df8485a769284 |
| publicationDate | 1984-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S59175479-A |
| titleOfInvention | Preparation of 2-benzothiazolinones |
| abstract | PURPOSE: To obtain the titled compound useful as an intermediate for drugs, etc. in high yield without requiring a particular device, by condensing an easily obtainable substituted aminothiophenol and a chlorocarbonic acid ester as raw materials, subjecting the condensation product to ring formation under heating or in the presence of a basic catalyst. n CONSTITUTION: A substituted aminothiophenol shown by the formula I (X is H, or halogen) is reacted with a chlorocarbonic acid ester directly or in the presence of a basic condensation agent, to give a carboalkoxy derivative shown by the formula II or formula III (R is lower alkyl). This compound without isolation and purification is subjected to ring formation in an organic solvent under heating or in the presence of a basic catalyst, to give a compound shown by the formula IV. An aromatic hydrocarbon such as toluene, xylene, etc. is used as the organic solvent, and an alkali hydroxide, alkali metal alkoxide, etc. is used as the basic catalyst. The reaction is carried out at a temperature near the boiling point of the solvent for 2W5hr. n COPYRIGHT: (C)1984,JPO&Japio |
| priorityDate | 1983-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 19.