http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02131441-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ee1c19da359446fb5c4f0458a57b783d |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C25-13 |
| filingDate | 1989-08-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42b67545d778bbc77814debd8030b7b2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ddbe84098342220bf8dfabe03b500633 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6e986c073a965067f8d1f3d610aeba76 |
| publicationDate | 1990-05-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H02131441-A |
| titleOfInvention | Production of chlorofluorobenzenes |
| abstract | PURPOSE: To produce chlorofluorobenzene which is used as a starting substance for an intermediate of antibiotics in high yield through a one-step process by allowing a specific fluorine-containing nitrobenzene with chlorine gas. n CONSTITUTION: A chlorofluorobenzene of formula II (n is 1 to 3, m is 0 to 2, and n+m is 1 to 3) such as 3,4-difluorochlorobenzene is obtained by reaction of a fluorine-containing nitrobenzene of formula I such as 3,4- difluoronitrobenzene with chlorine gas, preferably at 300 to 600°C at a ratio of 1 mole of the nitrobenzene to 0.1 to 20 moles of chlorine gas. Additionally, it is very advantageous that a fluorine-containing nitrobenzene of formula III is allowed to react with chlorine gas to give another chlorofluorobenzene of formula IV. According to the process, the introduction of a chlorine atom into the paraposition to the F atoms directly bonding to the benzene ring can he carried out very advantageously. n COPYRIGHT: (C)1990,JPO&Japio |
| priorityDate | 1988-08-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.