| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6cfc033f059d282fcd915bc8be2ae53f |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-347
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C65-105
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C65-15
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-377 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C65-15
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C65-105
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-377
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-347 |
| filingDate |
1987-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d545739aa24f91746e90b3122a70eded
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_580e1e8b9675eacc2e9c03841dc05def
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_559aeef129116eba81ad67a21ea9df50 |
| publicationDate |
1987-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0240362-A2 |
| titleOfInvention |
Process for the preparation of 4'-hydroxybiphenyl-4-carboxylic acid |
| abstract |
A process for the preparation of 4ʹ-hydroxybiphenyl-4-carboxylic acid by reacting a cyclohexanone-4-carboxylic acid compound with phenol in the presence of an acid catalyst, and then subjecting the resulting 4,4-bis(4-hydroxyphenyl)cyclohexanecarboxylic acid compound to decomposition and dehydrogenation reactions in the presence of a base and a dehydrogenation catalyst. The aforesaid cyclohexanone-4-carboxylic acid compound is obtained by catalytically hydrogenating a 4-hydroxybenzoic acid compound in a secondary alcohol or tertiary alcohol solvent, and the reaction mixture thus obtained is directly used for the reaction with phenol. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20170136165-A |
| priorityDate |
1986-04-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |