http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004138504-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-65688 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-5449 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-6568 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K21-12 |
| filingDate | 2003-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5ef86de9fa54f77ecdf4c0815c442f2d |
| publicationDate | 2004-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2004138504-A1 |
| titleOfInvention | Bisphosphonium salt and process for producing the same |
| abstract | A bis-phosphonium salt represented by the following formula (1) is provided: n n n wherein R 1 , R 2 , R 3 , and R 4 each represent a linear or branched alkyl group, a cycloalkyl group, an aryl group, or an aralkyl group; A represents an alkylene group; Y represents an anion; R 1 and R 2 may form a ring; R 3 and R 4 may form a ring; and R 1 , R 2 , R 3 , and R 4 may be the same or different. A process for producing such a bis-phosphonium salt includes a step of allowing a first secondary phosphine and second secondary phosphine to react with a compound in an alcohol solvent selected from a secondary alcohol and tertiary alcohol. The compound is represented by the following formula (5): n Y—A—Y (5) |
| priorityDate | 2002-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 561.