http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H01261343-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f9ba304908c7187b486482f16a0f6158 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-29 |
| filingDate | 1988-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fe896f62baad64c426b016612bd1047c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c1774bb6706dca00ee20834ff1efbe1d |
| publicationDate | 1989-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H01261343-A |
| titleOfInvention | Preparation of bis(trichloromethyl)diphenyl ether |
| abstract | PURPOSE: To provide the subject compound in a high purity, by simultaneously introducing dimethyldiphenyl ether and chlorine into an inert solvent containing a radical reaction initiator at the early time of the reaction and further introducing the chlorine under the irradiation of light preferably at the end time of the reaction to allow the reaction to accomplish. n CONSTITUTION: When dimethyldiphenyl ether of formula I (the methyl groups are located at meta or para positions) is chlorinated, the compound of formula I and chlorine are simultaneously introduced into an inert solvent (e.g., carbon tetrachloride) containing a radical reaction initiator (e.g., benzoyl peroxide) at the early time of the reaction and reacted to provide bis(trichloromethyl)diphenyl ether of formula II (the trichloromethyl groups are located at meta or para positions). Further, the chlorination reaction is carried out preferably by adding to the finish time of the reaction a process where the chlorine is introduced under the irradiation of light to allow the reaction to accomplish. The method can inhibit the generation of by- products and provides the highly pure objective compound only by a simple operation such as the concentration of the reaction solution under reduced pressures. The objective compound is useful as a raw material for heat-resistant resins or polymeric liquid crystals, etc. n COPYRIGHT: (C)1989,JPO&Japio |
| priorityDate | 1988-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.