http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102807507-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C241-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C243-22 |
| filingDate | 2012-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0102da7381ef1a47f8ce3457106ee2d5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7995eb9c581a7bf1e68f86ad72559705 |
| publicationDate | 2015-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102807507-B |
| titleOfInvention | Method for producing phenylhydrazine |
| abstract | The invention provides a method for producing phenylhydrazine (II), and the method has excellent yields. More specifically, the invention provides a method for producing phenylhydrazine (II) which comprises the following steps: diazonium salt (I) is reacted with at least one substance selected from sulfite and hydrosulphite in the presence of water; a reaction mixture obtained is contacted with an acid for refining; and the mixture is mixed with alkali at a temperature of 0 to 20 DEG C to regulate the pH of the mixture to a range of 8 to 11. In the diazonium salt (I) and the phenylhydrazine (II), R1 is preferably methoxyl. |
| priorityDate | 2011-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 77.