http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004260128-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f3fd1afe3264d1076b11f3f63e282359 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C1-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-2635 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-5352 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C1-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C2-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-535 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C5-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C15-40 |
| filingDate | 2003-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a68bb9723820fcb571f91de9ffb4403 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_82a7015b05d5f3f771ae8fd8f8b69def http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1c7cd7ff83ad4f8d2a49d8245e3435ae http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1c3e5576a67ab27adc9a1226966e8f40 |
| publicationDate | 2004-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2004260128-A1 |
| titleOfInvention | Solvent-free mechanochemical preparation of phosphonium salts, phosphorus ylides, and olefins |
| abstract | The present invention provides a method of preparing a phosphonium salt of the formula [R 1 R 2 R 3 P—CR 4 R 5 R 6 ]X, comprising ball-milling a phosphine of the formula R 1 R 2 R 3 P with a compound of the formula XCR 4 R 5 R 6 ; a method of preparing a phosphorus ylide of the formula R 1 R 2 R 3 P═CR 4 R 5 , comprising ball-milling a phosphonium salt of the formula [R 1 R 2 R 3 P—HCR 4 R 5 ]X in the presence of a base; and a method of preparing an olefin of the formula R 4 R 5 C═CR 7 H or R 4 R 5 C═CR 7 R 8 , comprising ball-milling a phosphorus ylide of the formula R 1 R 2 R 3 P═CR 4 R 5 with a compound of the formula R 7 C(O)H or R 7 C(O)R 8 . The inventive method produces phosphonium salts and phosphorus ylides by mechanical processing solid reagents under solvent-free conditions. The advantages of the present invention over conventional solution methods, include: (1) extremely high selectivity; (2) high yields; (3) low processing temperatures; (4) simple and scalable reactions using commercially available equipment; and (5) the complete elimination of solvents from the reaction. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013184091-A1 |
| priorityDate | 2002-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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