http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H04283557-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b9822bceff022feda91b10019125e70f |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C323-07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C319-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C22-08 |
| filingDate | 1991-03-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d1c37fc8f5daeaed155b30e8375423e3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_683c7af86586114b852dc6e7a86e4c18 |
| publicationDate | 1992-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H04283557-A |
| titleOfInvention | Production of substituted thiodifluoromethyl-substituted aromatic compound |
| abstract | PURPOSE: To efficiently produce the subject compound in high selectivity at a low cost by safely reacting and fluorinating a dithiocarboxylic acid ester with a quaternary ammonium dihydrogentrifluoride and a halonium ion generator under mild conditions. n CONSTITUTION: A quaternary ammonium dihydrogentrifluoride (e.g. tetramethylammonium dihydrogentrifluoride) expressed by formula I (R a to R d are alkyl) is reacted with an aromatic dithiocarboxylic acid ester (e.g. methyl 1-naphthalenedithiocarboxylate) expressed by formula II in the presence of a halonium ion generator such as 1,3-dibromo-5,5-dimethylhydantoin, N- bromosuccinimide or N-bromoacetamide to provide a substituted thiodifluoromethyl-substituted aromatic compound {e.g. 1-[difluoro(methylthio) methyl]naphthalene} expressed by formula III. The aforementioned method can be carried out by using a glass vessel and applied even to an unstable substrate under acidic conditions. n COPYRIGHT: (C)1992,JPO&Japio |
| priorityDate | 1991-03-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 19.