http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5738726-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_20d3042eb4ea7c9afd525aa89373349d http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ae36dd74b117dc5564edfe18c4830991 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B31-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B39-00 |
| filingDate | 1980-08-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b498f496bebac8820c71dc2f17dd79f9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fe41108aff4b5a73ffac2b6f8a4f0ca5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fa0fef3f8e8095cefee5672948d268bd |
| publicationDate | 1982-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S5738726-A |
| titleOfInvention | Preparation of aromatic fluorine compound |
| abstract | PURPOSE: To prepare the titled compound in high purity and yield, in a short time, at a low temperature, by the fluorination reaction of a benzene compound such as o-chloronitrobenzene with an alkali metal fluoride in a binary mixture consisting of an N-containing polar solvent and an S-containing polar solvent. n CONSTITUTION: An aromatic fluorine compound is prepared by reacting a benzene compound having an electron attracting group and Cl or Br at the ortho- or para- position (e.g. p-chloronitrobenzene, 2,4-dichloronitrobenzene, etc.) with an alkali metal fluoride (e.g. potassium fluoride). The reaction is carried out in a binary mixture consisting of an N-containing polar solvent [e.g. DMF, N-methyl-2-pyrrolidone (NMP), etc.] and an S-containing polar solvent (e.g. dimethyl sulfoxide, sulfolane, etc.). Esp. the combination of NMP and dimethyl sulfoxide or sulfolane is preferable. The reaction temperature is 160W240°C. The solvent can be recovered at 95% recovery. n COPYRIGHT: (C)1982,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4642399-A |
| priorityDate | 1980-08-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.