| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f2719fa05979c3fd9a302734fcf1a6aa |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2603-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0217
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-76
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C43-23 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0222
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C43-205
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0225 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-21
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-09 |
| filingDate |
2020-02-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cbe3bbf051137ce926cd30d6cd8a5347
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_06e3d46a0d439352dc46f2ba24d14c12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cc404d9f9b511a543c274b5bec62e4fe
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c798cb0df912b7fa66c41133812e9a3f |
| publicationDate |
2021-03-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
DE-102020103799-A1 |
| titleOfInvention |
PROCESS FOR THE PREPARATION OF 9,9-BIS (3-PHENYL-4- (2-HYDROXYETHOXY) PHENYL) FLUORENE |
| abstract |
A process for making 9,9-bis (3-phenyl-4- (2-hydroxyethoxy) phenyl) fluorene is provided. The method comprises the steps of: carrying out a condensation reaction with fluorenone and 2 - [(2-phenyl) phenoxy] ethanol in the presence of a catalyst and cocatalyst, the catalyst being alkylsulfonic acid and the cocatalyst being a mercapto-containing compound, whereby the formation of a by-product is effective is reduced so that the product has characteristics of low color saturation, high purity and high yield. |
| priorityDate |
2019-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |