| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a2b4f91c67dac42f3b864c9eaba123c6 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N43-54 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D239-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-10 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D239-52 |
| filingDate |
2018-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_285235a0e016775945b75c40643b9146
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c6f4530fdd8c075dd9d3b060332c7cb2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_736370b9e1ea25cf71455927a85a708c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a0776b78edfcf10aaeb07797ffc3a315 |
| publicationDate |
2020-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-3660005-A1 |
| titleOfInvention |
Method for preparing azoxystrobin |
| abstract |
A method for preparing azoxystrobin comprises the following steps: (a) mixing methyl (E)-2-[2-(6-chloropyrimidin-4-yloxy)phenyl]-3-methoxyacrylate, 2-cyanophenol, potassium carbonate, and 10-80 mol% of 1-methylpyrrolidine as a catalyst in an aprotic solvent to form a basic mixture, and reacting the basic mixture for 2-5 hrs at a temperature of 60-120°C; and (b) subjecting the basic mixture after reaction in Step (a) to a first distillation under a reduced pressure of 80-120 torr at 70-80°C, to obtain azoxystrobin. |
| priorityDate |
2018-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |