http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110156613-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-582 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C213-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C213-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C215-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C213-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C213-10 |
| filingDate | 2019-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110156613-B |
| titleOfInvention | A kind of synthetic method of 3,3-diaminobiphenol hydrochloride |
| abstract | The invention provides a method for synthesizing 3,3-diaminobiphenol hydrochloride. The method for synthesizing is as follows: adding raw material 4,4-biphenol and a reaction solvent into a reaction vessel, stirring, and dropping in an ice bath Add concentrated nitric acid, carry out nitration reaction under ice bath for 1～4h after the dropwise addition, and then after post-treatment to obtain intermediate 3,3-dinitrobiphenol; add 3,3-dinitrobiphenol into the reaction vessel , activated carbon, ferrous sulfate heptahydrate, anhydrous ethanol, reflux at 80°C, dropwise add hydrazine hydrate, carry out reduction reaction under reflux for 7-12h after dropwise addition, and then the reaction solution is post-treated to obtain product 3,3-di Amino biphenol hydrochloride; the reaction process parameters of the invention are easy to control, less energy consumption, no generation of highly toxic by-products, good yield, high purity, and high industrial feasibility. |
| priorityDate | 2019-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 51.