http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113801055-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5dfc24adb24b60165f4865cbb4570d07 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2211-1029 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D209-80 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-06 |
| filingDate | 2021-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a70de403c1e1f27235d048267de5559c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_81ce53fbd0b721ca7c2f80c6fff6b0fb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_249a8edf61247e59bb5ba3570de65fb5 |
| publicationDate | 2021-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113801055-A |
| titleOfInvention | Method for synthesizing benzocarbazole electroluminescent material |
| abstract | The invention provides a synthesis method of benzocarbazole electroluminescent material, which comprises the following steps: (1) performing addition dehydration, ring closing and hydrolysis reaction on the o-phthalaldehyde and the 3-nitro methyl propionate to generate 3-nitro-2-naphthalene carboxylic acid; (2) performing a Curtius rearrangement reaction on the product obtained in the step (1) and diphenyl phosphorazide to generate 3-nitro-2-naphthalene isocyanate, and adding tert-butyl alcohol into the reaction liquid to perform an esterification reaction to generate 3-nitro-2-tert-butoxycarbonylaminonaphthalene; (3) hydrolyzing the product obtained in the step (2) under the catalysis of sodium hydroxide to generate 3-nitro-2-aminonaphthalene; (4) reacting the product obtained in the step (3) with sulfuric acid and sodium nitrite to generate diazonium salt, and reacting the diazonium salt with benzene under the action of trichloroacetic acid serving as a catalyst and self-made copper powder to generate 3-nitro-2-phenylnaphthalene; (5) performing ring closing on the product obtained in the step (4) under the action of a catalyst triphenylphosphine to generate benzocarbazole; the method has the advantages of simple operation, high conversion rate and easy purification and amplification preparation. |
| priorityDate | 2021-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 78.