http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102557930-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d2b87f5094e6ca00e896d91532184ff3 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C213-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-035 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C217-80 |
| filingDate | 2012-01-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_82b374ed428140b5acc489e96d7a6c05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c81cd03044e7b3f670b914c381407d19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d166715292e6bbf1981f294e2a61726c |
| publicationDate | 2014-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102557930-B |
| titleOfInvention | Biphenyl molecular glass and preparation method thereof |
| abstract | The invention relates to biphenyl molecular glass and a preparation method thereof, namely preparation of 2, 2' 1 2 (3, 5-di-tert-butyl-di-carbonate)-4, 4'-1 2 (di-tert-butyl-di-carbonate) biphenyl compound A and 2, 2', 4, 4'-4 (3, 5-di-tert-butyl-di-carbonate) biphenyl compound B. The diazotization reaction is conducted on 2, 2' 1 2 (3, 5-di-tert-butyl-di-carbonate)-4, 4'-benzidine under the condition of NaNO2/H2SO4, then the 2, 2' 1 2 (3, 5-di-tert-butyl-di-carbonate)-4, 4'-benzidine is heated and hydrolyzed under the acidity condition, demethylation is conducted under the condition of BBr3 to obtain 2, 2' 1 2 (3, 5-dyhydroxy-phenyl)-4, 4'-diphenol, and finally the 2, 2' 1 2 (3, 5-dyhydroxy-phenyl)-4, 4'-diphenol reacts with (t-Boc)2O to obtain the compound A. The 2, 2' 1 2 (3, 5-di-tert-butyl-di-carbonate)-4, 4'-benzidine is diazotized and then mixed with potassium iodide to obtain 2, 2' 1 2 (3, 5-di-tert-butyl-di-carbonate)-4, 4'-biphenyl-diiodine. The 2, 2' 1 2 (3, 5-di-tert-butyl-di-carbonate)-4, 4'-biphenyl-diiodine conducts Suzuki reaction with 3, 5-dimethoxy benzene boric acid under catalyst of Pd(Ph3)4/K2CO3 to obtain 2, 2', 4, 4'-4(3, 5-dimethoxy) biphenyl. 2, 2', 4, 4'-4(3, 5-dyhydroxy-biphenyl) is obtained by demethylation through the BBr3 under low temperature and reacts with the (t-Boc)2O to obtain the compound B. |
| priorityDate | 2012-01-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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