http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5545771-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d93502a23a72b56472bc75854cfe7c60 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C19-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C19-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C19-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C19-08 |
| filingDate | 1993-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1996-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d7728be5f5d6d072b69b5e7261e93b02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_11b8645b93b85414ac8c1b9d0a1b3df4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9491f4fe497444111bd8eab8449b68dd |
| publicationDate | 1996-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-5545771-A |
| titleOfInvention | Process for preparation of gem-difluoroalkanes |
| abstract | A process for preparation of a gem-difluoroalkane is provided which comprises n (A) a step to add a fluorinated alkane having a boiling point of -30° to 30° to a crude alkyne having 3 or 4 carbon atoms containing a polymerizable olefin as an impurity, and distill the mixture to remove the polymerizable olefin, n (B) a step to react hydrogen fluoride with the fluorinated alkane and the alkyne having 3 or 4 carbon atoms obtained in the above step to synthesize the gem-difluoroalkane, and n (C) a step to distill the reaction solution of the above (B) to obtain the gem-difluoroalkane. n According to this process, gem-difluoroalkanes can be prepared more economically compared with usual processes. |
| priorityDate | 1992-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.