http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100425647-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-053 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C39-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-88 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-50 |
| filingDate | 2001-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2004-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2004-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-100425647-B1 |
| titleOfInvention | Method of preparation 4,4'-biphenol |
| abstract | The present invention relates to a method for preparing 4,4'-biphenol, which method comprises using 3,3 ', 5,5'-tetraalkyl-4,4'-biphenol of formula (2) as an organic solvent and an acid. A process for producing a 4,4'-biphenol of formula (1) comprising the step of performing a dealkylation reaction in the presence of a catalyst, wherein the organic solvent is a phenol compound having at least one alkyl group as a substituent, and the dealkylation reaction In the step of the dealkylation reaction, the organic solvent is carried out while reducing the pressure so that it can boil slowly.n n n [Formula 1]n n n n n n n n [Formula 2]n n n n n n n n (In Formula 2, R is a linear or branched alkyl group having 3 to 8 carbon atoms.)n n n This biphenol production method is suitable for use as a raw material for heat-resistant resins or aromatic liquid crystal polyester resins because it is possible to economically produce high-purity biphenols that are not colored in high yield. |
| priorityDate | 2001-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 88.