http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2758839-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_52f145b2c80d73b7e60c909dddd04863 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D251-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D261-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N41-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N41-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D261-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D251-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N41-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N41-00 |
| filingDate | 2021-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a036e044414d0e8d004b706090abb2fc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f5f87858cf8fba96f6047e0621abe6ba http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e93ca3c31f175fe03624ff600b440f82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_16f7930c7718cd37680f70befd730255 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_449581bf7c7cb1fce8734b5b4dec375b |
| publicationDate | 2021-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2758839-C1 |
| titleOfInvention | Method for producing herbicide triflusulfuron-methyl |
| abstract | FIELD: pesticide production.SUBSTANCE: invention relates to the field of pesticide production, more specifically to a method for producing triflusulfuron-methyl (methyl 2-[4-dimethylamino-6-(2,2,2-trifluoroethoxy)-1,3,5-triazin-2-ylaminocarbonylaminosulfonyl]-3-methyl benzoate),,which is a systemic postemergence herbicide from the sulfonylurea class. The method for obtaining the herbicide triflusulfuron-methyl includes the interaction of methyl 2-(chlorosulfonyl)-3-methylbenzoate, sodium cyanate, pyridine and 2-amino-4-dimethylamino-6-(2,2,2-trifluoroethoxy)triazine-1,3,5 in acetonitrile as a solvent, followed by its isolation after the reaction and purification, which is carried out by keeping the obtained triflusulfuron-methyl in a mixture of water and lower alcohol in the presence of an inorganic acid at a temperature of 10-30°C for 1-3 hours. The concentration of lower alcohol in a mixture with water is from 10 to 90 vol. %, and methanol, ethanol, propanol or isopropanol are used as the lower alcohol. The inorganic acid used is hydrochloric, sulfuric or phosphoric acid.EFFECT: proposed method for producing the herbicide triflusulfuron-methyl provides a simplification of the stage of purification of TFSM during its production, reduction of its duration due to a significant reduction in the number of required technological operations and, as a consequence, an increase in the technical and economic indicators of the process as a whole; mitigation of industrial and fire safety requirements during its implementation by eliminating the use of a dangerous solution of sodium methoxide in methanol; obtaining at this stage purified TFSM with a yield of up to 92% and a quantitative content of up to 98.8%.4 cl, 6 ex |
| priorityDate | 2021-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 61.