http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107266282-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2531-24 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C1-326 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C1-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C15-24 |
| filingDate | 2017-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107266282-B |
| titleOfInvention | Preparation method of 1, 4-dimethylnaphthalene |
| abstract | The invention discloses a preparation method of 1, 4-dimethylnaphthalene, belongs to the field of organic synthesis, and aims to solve the problems that when a methylation route is adopted to synthesize the 1, 4-dimethylnaphthalene, the separation difficulty of isomers is high, the industrialization is difficult, and the industrialization value is not high, and when a loop closing route is adopted to synthesize the 1, 4-dimethylnaphthalene, part of reaction conditions are harsh, related materials are expensive, high in toxicity and risk, low in total yield, high in cost and high in industrialization difficulty. The invention takes 1, 4-dihalogenated naphthalene and methyl magnesium halide Grignard reagent as main raw materials, and prepares 1, 4-dimethylnaphthalene under the action of nickel-phosphine complex and solvent. The preparation method has the advantages of easily obtained raw materials, short synthetic route, mild reaction conditions and low cost, is suitable for industrial production and application, and has higher industrial application value. Meanwhile, the product prepared by the method has high purity, stable quality, high yield and content and higher economic value. |
| priorityDate | 2017-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 90.