http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-6156858-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L101-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-053 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-23 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-02 |
| filingDate | 2016-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-6156858-B1 |
| titleOfInvention | Method for producing 9,9-bis (4- (2-hydroxyethoxy) phenyl) fluorene crystal |
| abstract | Disclosed is a novel 9,9-bis (4-) in which a melting peak by a differential scanning calorimetry method is observed in a temperature range of 115 to 125 ° C. and a bulk specific gravity is 0.60 to 0.75 g / cm 3. Providing a method for producing (2-hydroxyethoxy) phenyl) fluorene crystals. A crude crystal of 9,9-bis (4- (2-hydroxyethoxy) phenyl) fluorene is obtained by reacting fluorenone and phenoxyethanol, and the crude crystal is purified to a purity of at least 99%. A method of preparing purified 9,9-bis (4- (2-hydroxyethoxy) phenyl) fluorene purified crystals. A solution was prepared by dissolving purified crystals in a mixed solvent of acetonitrile and methanol whose temperature was controlled at -20 to 5 ° C. Crystals were precipitated in this solution, and the precipitated crystals were separated and dried. , 9-bis (4- (2-hydroxyethoxy) phenyl) fluorene crystal. [Selection] Figure 2 |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112334437-A |
| priorityDate | 2016-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 65.