http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2018180610-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fec576c38e34882531ca37d6b922bf42 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B61-00 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C43-317 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-317 |
| filingDate | 2018-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8db63b79e28d27a4b37d9c9412150ff9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b1da32aba0b9708788deef4c54df353b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bbedf9e98cbbe09b090c96f55b7240e6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_54fcc32039ec429c61a5e525aa0aa003 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_145604ca62ec8935ab3c7c161f6f6866 |
| publicationDate | 2018-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2018180610-A1 |
| titleOfInvention | PRODUCTION METHOD FOR α,α-DIFLUOROACETALDEHYDE HEMIACETAL |
| abstract | The production method for an α,α-difluoroacetaldehyde hemiacetal ("DFAL-ROH") according to the present invention comprises: a step in which a difluoroacid ester is reacted with hydrogen (H 2 ) in a reactor in the presence of a base and a ruthenium catalyst to produce a mixture containing a DFAL-ROH; a step in which the mixture is neutralized, thereafter the oxygen concentration inside the reactor is regulated to 5,000 ppm or less under such conditions that the mixture is shielded from light, and then distillation is conducted to obtain a mixture comprising the DFAL-ROH and a dimer and having a pH of 3.5-10.0; and a step in which an alcohol is added to the mixture after the oxygen concentration inside the reactor is regulated under light-shielding conditions, thereby obtaining a DFAL-ROH-containing mixture from which at least some of the dimer contained in said mixture has been removed or substantially all the dimer contained in said mixture has been removed. By the method, a DFAL-ROH reduced in by-product content is efficiently obtained. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114736104-A |
| priorityDate | 2017-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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