http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-100593540-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d40285e27f4ed83b8728b0d477404958 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D231-38 |
| filingDate | 2007-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2010-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_68d7ea75372f295d9554f9b9f6f5388a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_50f9dd828924a0e27991ffa7759b7f2b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a201f344ea991a8dda1d7b65db3553c9 |
| publicationDate | 2010-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-100593540-C |
| titleOfInvention | Method for preparing 5-amido-1-(2,6-dichlorin-4-trifluoro methylbenzene)-3-cyano pyrazole |
| abstract | The present invention discloses a preparation method of the 5-amino-1-(2, 6-dichloro-4-trifluoromethyl phenyl)-3-cyano-pyrazole; the 2, 6-dichloro-4-trifluoromethylaniline is used as the raw material;the sulfuric acid of 40 to 98 percent is used as the reaction medium; the aqueous solution of sodium nitrate is dropped for the diazotization at the temperature between 0 and 70 DEG C for 0.5 to 1 hour to get the diazotization reaction solution; the temperature of the diazotization reaction solution is adjusted to be between 15 and 30 DEG C and then the 2, 3-dicyanoacrylate ethyl ester is added;then the cyclization reaction is done in the organic solvent at the temperature between 25 and 50 DEG C under the weakly alkaline condition; after the reaction is finished, the solution is dealt withto get the compound 5-amino-1-(2, 6-dichloro-4-trifluoromethyl phenyl)-3-cyano-pyrazole. The present invention effectively reduces the production cost and the ''three-waste'' emissions; therefore, thepresent invention can maintain the easiness of reaction, improve the collection rate of reaction, and reduce the ''three-waste'' emissions. |
| priorityDate | 2007-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 47.