http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103467341-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fd37b53f7a639daf413b490204ba4613 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-50 |
| filingDate | 2013-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a26203db7a4186fe7a0d033b4d7d391c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_acd18e4da76dfee67c75370f61816178 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_84c39bbb2c128317bab02ece82cb568c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_05a4301347c0cfb7faea57b8112d7118 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_81c1e52cddcc3d49c1580be6285db4a5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d22bde5bb35a9d5bfde51940b2f33855 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4c6a7d33c8f85463b1f8628571626c7a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f4b69c4932795b27646d431e0a367d2a |
| publicationDate | 2015-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103467341-B |
| titleOfInvention | Preparation method for 2-cyano-4'-methylbiphenyl |
| abstract | The invention discloses a preparation method for 2-cyano-4'-methylbiphenyl. The invention adopts the following technical scheme: the preparation method comprises the following steps: taking p-chlorotoluene as a raw material for Grignard reaction with magnesium powder in a solvent in the absence of water under nitrogen protection, and coupling a reaction product with chlorobenzonitrile under the catalytic effect of a nickel-manganese composite catalyst to prepare 2-cyano-4'-methylbiphenyl. A Ni (II)/Mn (II) composite catalyst is added into a 2-cyano-4'-methylbiphenyl synthesis reaction system, so that the reaction activity is enhanced and the reaction selectivity is improved; the catalyst is lower in price and easy to recover, so that the postprocessing difficulty is lowered and the production cost is reduced; a recrystallization method is adopted in postprocessing and refining processes, so that the product purity is further improved, a white product is obtained, and the industrialization operation is more convenient. |
| priorityDate | 2013-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 77.