http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103936692-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D285-135 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D417-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D417-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D285-135 |
| filingDate | 2014-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-02-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-02-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103936692-B |
| titleOfInvention | One prepares the method for 2-amino-5-aryl-1,3,4-thiadiazoles |
| abstract | One prepares the method for 2-amino-5-aryl-1,3,4-thiadiazoles, and step is: in the reaction vessel of drying, add Amol thiosemicarbazide, Bmol aromatic acid and Cmol phosphorus oxychloride, and under room temperature, grinding evenly, obtains crude product after leaving standstill; Wherein A:B:C=1:(1 ~ 1.2): (1 ~ 1.2); In crude product, add basic solution again, the pH value to the mixed solution obtained is 8 ~ 8.2, is then filtered by mixed solution, by recrystallization after filtration cakes torrefaction, obtains 2-amino-5-aryl-1,3,4-thiadiazoles.The present invention is solid state reaction, and reaction process is simple, and the reaction times is short, reaction conditions is gentle, equipment requirements is low, and aftertreatment is simple, 2-amino-5-aryl-1,3, the productive rate of 4-thiadiazoles is higher, can reach more than 94%, is a kind of economic, convenient, efficient preparation 2-amino-5-aryl-1, the method of 3,4-thiadiazoles. |
| priorityDate | 2014-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 83.