| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_77e43970fab23ac7b360175d24b92c3c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_20c2140b2aea839e88cf4a4dcd30ab8e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8d74480c3960afaf50c27d0c04cb9239
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fec576c38e34882531ca37d6b922bf42 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-14 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-63
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-62 |
| filingDate |
2011-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_71b21b1efc871ab0140e5174ec3895c4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_44f5acedb47879b95864d66e82df1cb1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6cfc57c26d1390bd573a0da78a87a4cf |
| publicationDate |
2011-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2011102439-A1 |
| titleOfInvention |
Method for producing difluoroacetic acid ester |
| abstract |
Disclosed is a method for producing a difluoroacetic acid ester which involves at least: a reaction step in which a reaction solution is obtained by bring an alcohol represented by ROH into contact with a difluoroacetic acid fluoride (CHF 2 COF) in the presence of a hydrogen fluoride scavenger comprising an amide compound represented by formula (1) or a sulfone compound represented by formula (2); and a distillation step (A) in which a difluoroacetic acid ester represented by CHF 2 COOR is obtained as a distillate from the reaction solution obtained in the reaction step. As a consequence, said production method does not cause a drop in product yield attributable to hydrogen fluoride, which is a by-product of the mechanism of esterification reaction using difluoroacetic acid fluoride. |
| priorityDate |
2010-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |