http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106928098-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C273-1809 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C281-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C281-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C281-12 |
| filingDate | 2015-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106928098-B |
| titleOfInvention | A kind of synthetic method of indoxacarb intermediate semicarbazone |
| abstract | The invention discloses a kind of synthetic methods of indoxacarb intermediate semicarbazone, comprising the following steps: 4- trifluoro-methoxyaniline and isocyanates generate 4- Trifluoromethoxyphen-l urea under acetic acid effect；4- Trifluoromethoxyphen-l urea occurs hydrazinolysis in organic solvent with hydrazine hydrate and reacts generation 4- trifluoro-methoxyaniline base hydrazides；4- trifluoro-methoxyaniline base hydrazides and the chloro- 1,3- dihydro -2- hydroxyl -1- oxo -2H- indenes -2- carboxylate methyl ester of 5- in organic solvent, generate semicarbazone class compound under the action of catalyst.The method of the present invention isocyanates being industrially easy to get passes through a series of synthetic intermediate semicarbazone that is converted；This method disadvantage low with yield at high cost when not only having avoided noble metal as catalyst, but also the technological deficiency that ring-closure reaction yield can be overcome low do not use noxious material phosgene product also；The method of the present invention synthesizes indoxacarb Atom economy and yield is higher, and safety is good. |
| priorityDate | 2015-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 73.