http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107245055-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D233-80 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D233-80 |
| filingDate | 2017-06-07^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-02-14^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-02-14^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107245055-B |
| titleOfInvention | Preparation method of iprodione |
| abstract | The invention discloses a preparation method of iprodione, which comprises the following steps: mixing N- [ [ (3, 5-dichlorophenyl) amino ] carbonyl ] aminoacetic acid with an organic solvent, and reacting under the action of a catalyst A to generate 3- (3, 5-dichlorophenyl) -2, 4-imidazolidinedione, wherein the catalyst A is a mixture of concentrated sulfuric acid, methanesulfonic acid and p-toluenesulfonic acid; reacting 3- (3, 5-dichlorophenyl) -2, 4-imidazolidinedione with isopropyl isocyanate under the action of a catalyst B and a catalyst C to generate iprodione, wherein the catalyst B is a mixture of ammonium carbonate, sodium bicarbonate and sodium carbonate, and the catalyst C is a mixture of pyridine and triethylamine. The content of the iprodione finished product prepared by the method reaches more than 97 percent, and the preparation cost of the iprodione is greatly reduced. |
| priorityDate | 2017-06-07^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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