| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9ce023a6c13740cb05a67332f11a29f9 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-208
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-062 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-06 |
| filingDate |
1998-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b83a95b597eab65f27a649e37809609d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6dc6a615c3f2445d4ca6aa7d031f4e3a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_72a6f93e41662e53e38eec9e8cdc66ad |
| publicationDate |
1998-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-9835971-A1 |
| titleOfInvention |
Preparation of tetrakis(dihydrocarbylamino)phosphonium halide |
| abstract |
A mixture is made from (i) a tris(dihydrocarbylamino) phosphoroamidite and/or a hydrohalide thereof; (ii) a strong base (e.g., NaOH) in proportions of 2.0 to 4.0 moles of (ii) per mole of (i); and (iii) at least one solvent for the base (e.g., H2O). To this mixture is added a hydrocarbyl monohalide (e.g., EtBr) in proportions of 1.0 to 3.0 moles per mole of phosphoroamidite used in forming the initial mixture, and the resultant reaction produces tetrakis(dihydrocarbylamino)phosphonium halide. The process enables more efficient production of tetrakis(dihydrocarbylamino)phosphonium halides, and is capable of being effectively used in large scale production facilities while satisfying the economic constraints of commercial operations. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6524363-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0069864-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9926950-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1956026-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1956026-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8871974-B2 |
| priorityDate |
1997-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |