http://rdf.ncbi.nlm.nih.gov/pubchem/patent/IE-45332-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_da54f7ebbd2d9d8a82f92aca4d1b4e48 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D285-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N43-82 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D285-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N43-82 |
| filingDate | 1977-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1982-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | IE-45332-B1 |
| titleOfInvention | New process for the manufacture of 5-amino-1,2,3,-thiadiazole |
| abstract | 5-amino-1,2,3-thiadiazoles of the formula I are made by reacting halogenoacetaldehydes of the formula X-CH2-CH=O II with hydrazine derivatives of the formula H2N-NH-COR III preferably in an aqueous medium or in a mixture of an aqueous medium with organic solvents so as to form acylhydrazones of the formula X-CH2-CH=N-CH-CO-R IV whereupon the latter are reacted with thionylchloride of the formula SOCl2 V whereby 5-halogeno-1,2,3-thiadiazoles are formed which are then reacted with ammonia preferably in the presence of a catalyst such as a mineral acid or Lewis acid whereby the desired product is obtained. The products are useful in making plant protection agents and herbicides such as the 1,2,3-thiadiazolyl-urea derivatives. |
| priorityDate | 1976-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 52.