| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_73ee0bacab5a7576a6a3244747f6ea99 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2603-22 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C213-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C315-04 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C317-22 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-205
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C315-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-37
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 |
| filingDate |
1976-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
1977-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
ES-450312-A1 |
| titleOfInvention |
PROCEDURE TO PREPARE AROMATIC ESTERS. |
| abstract |
Aromatic or heteroaromatic ethers are obtained by reacting a water-immiscible activated aromatic or heteroaromatic halide with an alcohol. The reacting halogen atom has to be bonded to an aromatic or heteroaromatic ring carbon atom and the reaction itself has to be carried out in the presence of an aqueous alkali and of a phase transfer catalyst. Cyclic aromatic ethers are prepared when the hydroxy compound is itself a substituent of the aromatic halide that is attached to the o-position when the aromatic halide is a benzene derivative or the ortho- or peri-position when the aromatic halide is a naphthalene derivative. In this case an intramolecular etherification takes place. The ethers prepared are usable inter alia as dye intermediates. |
| priorityDate |
1975-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |