http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1148543-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D253-075 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-06 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N43-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C59-185 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D253-075 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D253-06 |
| filingDate | 1981-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1983-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_860b2e0250f96bdc759ec85b74a9ba5a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e6d4e480c80516f94e264c1934178360 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b56da418c002601ec142d2302858916a |
| publicationDate | 1983-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1148543-A |
| titleOfInvention | Process for the preparation of 4-amino-6-tert.-butyl- 3-methylthio-1,2,4-triazin-5(4h)-one |
| abstract | ABSTRACT In the preparation of 4-amino-6-tert.-butyl-3-alkylthio-1,2,4-triazin-5-(4H)-one of the formula wherein (1) pivaloyl cyanide of the formula (CH3)3C-CO_CN is reacted to form a derivative of pyruvic acid, (2) the pyruvic acid derivative is condensed with thiocarbohydrazide of the formula NH2_NH-CS-NH-NH2 to form 4-amino-6-tert.-butyl-3-mercapto-1,2,4-triazin-5(4H)-one of the formula and (3) this is alkylated, the improvement which comprises effecting step (1) by reaction with a carboxylic acid anhydride of the formula R-CO-O-CO-R in which R is an optionally substituted aliphatic radical with up to 8 carbon atoms or an optionally substituted phenyl radical, in the presence of a strong acid at a temperature between about -50 and +150°C, and then adding water to the reaction mixture, thereby to form trimethylpyruvic acid N-acylamide of the formula (CH3)3C-CO-CO-NH-CO-R. |
| priorityDate | 1980-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 119.