| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_71b7f110a006a69b5540442b33ea289b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ea30120043e6821b39c8fc44493f321e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e0af72a69db64eacd1235d8e64376ddf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e63dda06a598b14771ca05dbf4fb455b |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-14 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-14 |
| filingDate |
2004-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d4910e1953e760af9e5c4f16fe4a89af
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5030bd97a21e3ad377aca1b5492282fc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9888c825d6bf087fb68b25400a37893a |
| publicationDate |
2005-02-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2005014568-A2 |
| titleOfInvention |
Production of dialkylated hydroquinones |
| abstract |
A process for the production of a disubstituted hydroquinone which comprises alkylating hydroquinone in the presence of a sulphonic acid condensation catalyst with an olefin or a substance which under the reaction conditions acts as a source thereof. The preferred olefin is 2-methyl-2-butene either alone or in admixture- with isomers thereof, and the preferred catalyst is methane sulphonic acid and the reaction product is 2,5-di-tert-amylhydroquinone. Only catalytic amounts of catalyst are required. The reaction product is worked-up by complete dissolution of the desired product and washing with an aqueous medium containing a pH buffering agent and a reducing agent. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115073352-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-2002250061-B2 |
| priorityDate |
2003-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |