http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102009049419-B4
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_333c51b9dae0166cf6cb26b7d623f616 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-208 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-206 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C25-13 |
| filingDate | 2009-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2012-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_557d5e2e1fb0bd593ca0966f0284b44d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac880f512bccc381a68e0d86474e3f85 |
| publicationDate | 2012-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-102009049419-B4 |
| titleOfInvention | Improved process for the preparation of 3-chloro-4,5-difluorobenzotrifluoride |
| abstract | A process for the preparation of 3-chloro-4,5-difluorobenzotrifluoride, characterized in that 3,4,5-Trichlorbenzotrifluorid with at least one fluoride source in the presence of at least one catalyst selected from the group of ammonium salts, quaternary phosphonium or guanidinium salts or mixtures of these compounds and in the presence of an organic solvent selected from the group sulfoxides, sulfones or amides or mixtures of such solvents is reacted at a temperature of 160 ° C to 220 ° C and the resulting 3-chloro-4,5-difluorobenzotrifluoride during the reaction by continuous distillation the reaction mixture is separated and the reaction mixture 3,4,5-Trichlorbenzotrifluorid is supplied in such a way that the difference in the molar amounts of the removed from the reaction mixture of 3-chloro-4,5-difluorobenzorifluorid to the amount of 3,4,5-Trichlorbenzotrifluorids is not greater than 50%. |
| priorityDate | 2009-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 104.