http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S62234042-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5128cfc84a0fb189fceb3cd240c44493 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-67 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-84 |
| filingDate | 1986-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f1364e656a6bb5defd5c3457477095f3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_39c6b38882ecc0ed138bc0b0077eac8a |
| publicationDate | 1987-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S62234042-A |
| titleOfInvention | Production of 4,4'-(p-hydroxybenzoyl)diphenyl ether |
| abstract | PURPOSE: To obtain the titled substance useful as a raw material for heat- resistant polymers in high yield in a short time, by treating 4,4'-(diphenoxycarbonyl)diphenyl ether in the presence of liquid hydrogen fluoride at a specific temperature to carry out the Fries rearrangement. n CONSTITUTION: 4,4'-(Diphenoxycarbonyl)diphenyl ether is reacted with liquid hydrogen fluoride at 1:1W1,000 molar ratio at -20W+80°C, preferably 0W50°C for several min W several tens of hr to afford the titled substance. The liquid hydrogen fluoride may also functions as a solvent, but an insert solvent, e.g. pentane, cyclohexane, chloroform, benzene, etc., may be used. n EFFECT: Since water is not formed as a by-product, the liquid hydrogen fluoride can be readily separated from the reaction product by distillation and the recovery and reuse can be readily carried out at a low cost. n COPYRIGHT: (C)1987,JPO&Japio |
| priorityDate | 1986-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.