http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108558824-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_02d71bdf23e93faf2a6f3bdaa4eb0e80 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-122 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-138 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D333-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-0006 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-138 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-38 |
| filingDate | 2018-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108558824-A |
| titleOfInvention | A method of preparing 2- thenoyl hydrazines |
| abstract | The present invention provides a kind of method preparing 2 thenoyl hydrazines, this method uses ZnCl using 2 thiophenic acids and hydrazine hydrate as raw material 2 /CuCl 2 Composite catalyst carries out hydrazidesization reaction and 2 thenoyl hydrazines is made at a certain temperature, keep hydrazine hydrate excessive in the reaction system, and constantly separate the water that reaction generates from reaction system, to effectively promote the progress of hydrazidesization reaction, improve reaction yield.Compared with prior art, the method for the present invention is easy to operate, and one step of reaction is completed, high income, the recyclable reuse of catalyst, eliminates esterification, shortens processing step, production cost is reduced, the discharge of waste is reduced, is a kind of environmental type production technology. |
| priorityDate | 2018-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.