http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1234132-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C46-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C46-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C46-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C46-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C46-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C46-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C46-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-122 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C46-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C50-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C50-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C46-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-72 |
| filingDate | 1983-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1988-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f8ee058d009a390aa5b707d030805518 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_80c7ac244cc9222035ca59c618bd6069 |
| publicationDate | 1988-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1234132-A |
| titleOfInvention | Preparation of 2,3,5-trimethyl-p-benzoquinone |
| abstract | Abstract of the Disclosure: Trimethyl-p-benzoquinone of the formula I (I) is prepared by a process wherein A. 2,5,6-trimethylcyclohex-2-en-1-one or 2,3,6-trimethyl-cyclohex-2-en-1-one is reacted with air or oxygen at from 0 to 150°C in a virtually anhydrous low molecular weight alkanol in the presence of a catalytic amount of copper (I) oxide or copper(II) oxide and in the presence of from 1 to 10 moles of a hydrogen halide gas per mole of tri-methylcyclohexenone, and thereafter B. the reaction mixture, which essentially contains 2,3,6-trimethylphenol and/or 4-halo-2,3,6-trimethylphenol, is mixed with an alkali metal alcoholate in an amount such that a sample, when moistened with water, has a pH of from 3 to 6, and is then reacted with air, pure oxygen or tert.-butyl hydroperoxide at from 0 to 150°C, or wherein from 1 to 10 mole equivalents of a hydrogen halide gas per mole of substrate to be reacted are passed into a mixture containing a virtually anhydrous low mole-cular weight alkanol and a catalytic amount of copper(I) oxide or copper(II) oxide at from 0 to 30°C, an alkali metal alcoholate is addled in an amount such that a sample, when moistened with water, has a pH of from 3 to 6, about one mole equivalent of 2,3,6-trimethylphenol is added and the mixture is then reacted with air, oxygen or tert.-butyl peroxide at from 0 to 150°. Trimethyl-p-benzoquinone is an important intermediate for the synthesis of vitamin E. |
| priorityDate | 1982-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 88.