http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S6399036-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5128cfc84a0fb189fceb3cd240c44493 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-367 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C65-11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C65-24 |
| filingDate | 1986-10-15^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_39c6b38882ecc0ed138bc0b0077eac8a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aaadf6b186fad368f97b74927328960b |
| publicationDate | 1988-04-30^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S6399036-A |
| titleOfInvention | Production of aromatic hydroxycarboxylic acid |
| abstract | PURPOSE: To obtain the titled compound, by subjecting dibrominated or diiodated biphenyl or diphenyl ether to be readily synthesized from inexpensive biphenyl or diphenyl ether to monocarbonylation with CO and hydrolyzing. n CONSTITUTION: A compound (e.g. 4,4'-diiododiphenyl ether, etc.) shown by formula I (X is B or I; n is 0 or 1) is reacted with carbon monoxide in the presence of a basic substance such as n-tributylamine to give a compound shown by formula II (R is H, alkyl or aromatic group), which is then hydrolyzed in the presence of a basic substance such as NaOH, KOH, etc., to give an aromatic hydroxycarboxylic acid [e.g. 4-(4-hydroxyphenoxy)benzoic acid, etc.] sown by formula III. The compound shown by formula I is obtained by oxidatively iodating biphenyl or diphenyl ether. The aromatic hydroxycarboxylic acid is a raw material for fibers and resins having excellent heat resistance and chemical resistance. n COPYRIGHT: (C)1988,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9324442-A1 |
| priorityDate | 1986-10-15^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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