http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111848469-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-02 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C319-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C323-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D261-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C319-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D261-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C323-32 |
| filingDate | 2019-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111848469-B |
| titleOfInvention | Isoxazole herbicide intermediate and preparation method thereof |
| abstract | The invention relates to the field of herbicides, in particular to an isoxazole herbicide intermediate and a preparation method thereof. One of the isoxazole herbicide intermediates has the structure shown in formula A, and the other has the formula D shows the structure. And the method for the intermediate of formula A comprises: in the presence of the first organic solvent, the compound shown in formula B, the complex and the first acid binding agent are subjected to a contact reaction, wherein the complex is composed of compound X and compound Y is obtained through a complexation reaction, and the compound X is selected from at least one of N,N-dimethylformamide, N-methylformamide and N,N-diethylformamide; the compound Y is selected from From dimethyl sulfate and/or diethyl sulfate. The invention can effectively improve the yield and purity of the structure represented by formula D, and the method of the invention is more convenient, safe and environmentally friendly. |
| priorityDate | 2019-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 65.