http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8039676-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3fc5d0d0af41aff597af9da0f3c5c16b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-5316 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-53 |
| filingDate | 2008-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2011-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_affad2c8d0a1521ca5c386c94ed07a92 |
| publicationDate | 2011-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-8039676-B2 |
| titleOfInvention | Process for producing phosphine oxide vitamin D precursors |
| abstract | A process for producing a compound of the formula: n nincluding reacting of a compound of the formula:n n nwith diphenyl phosphine oxide using a binary phase reaction mixture including diphenyl phosphine oxide in an organic solvent, a basic aqueous solution, and a phase transfer catalyst, to obtain the compound of formula 1,n nwherein Ph is phenyl, X 1 and X 2 are both hydrogen or X 1 and X 2 taken together are CH 2 , R 1 is a protecting group, R 2 is fluorine, hydrogen, or OR 3 , wherein R 3 is a protecting group, and the squiggly line represents a bond that results in the adjacent double bond being in either the E or Z configuration, is disclosed. |
| priorityDate | 2007-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 357.