http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2002072619-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D311-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D311-72 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| filingDate | 2001-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_95f79e6d35cc7016de0458fd8a2de77b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c6dfbe5d705cf7e2602afe298fd0b3f7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dafb1e4e89eef936e374e23f624d932e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dac76a0fb842838a0f10b5d9779ad654 |
| publicationDate | 2002-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2002072619-A1 |
| titleOfInvention | Method of making (all-rac)-alpha-tocopherol |
| abstract | The present invention is a method of making (all-rac)-α-tocopherol in a reaction having the following steps: n a) reacting trimethylhydroquinone and a phytol selected from the group consisting of isophytol and phytol in the presence of a bis(perfluorinated hydrocarbyl sulphonyl)imide catalyst or a metal salt thereof of formula I: n [(R 1 SO 2 ) 2 N] x R 2 (I) n wherein n each R 1 , independently, signifies a perfluoroalkyl group C n F 2n+1 or a pentafluorophenyl, or both symbols R 1 together signify a poly-difluoromethylene group —(CF 2 ) m —, with the proviso that both symbols R 1 cannot simultaneously signify trifluoromethyl, n R 2 signifies a proton or a cationic form of a metal selected from the group consisting of boron, magnesium, aluminium, silicon, scandium, titanium, vanadium, manganese, iron, cobalt, nickel, copper, zinc, yttrium, zirconium, rhodium, palladium, silver, tin, lanthanum, cerium, praseodymium, neodymium, europium, dysprosium, thulium, ytterbium, hafnium, platinum, and gold, n m is an integer from 2 to 4, n n is an integer from 1 to 10, and n x is the corresponding valency of the proton (1) or the metal cation (1, 2, 3, or 4), in organic solvent; and n b) recovering (all-rac)-α-tocopherol from the reaction mixture. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9958363-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2015369711-A1 |
| priorityDate | 2000-08-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 204.