http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0981513-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9ce023a6c13740cb05a67332f11a29f9 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C319-14 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C321-28 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C319-14 |
| filingDate | 1998-04-23^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_28a1d45541dd93478042f7404b3aced3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d6ff2944c0bf88a5fb16015fd520fa91 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dabcb67a806b73437642367cb8b13d4a |
| publicationDate | 2000-03-01^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0981513-A1 |
| titleOfInvention | Alkanethiolation process |
| abstract | A mixture formed from one or more alkyl disulfides, benzene, and at least about 1.5 equivalents of Lewis acid catalyst is heated to form alkanethiobenzene. Reaction in a mixture formed from excess benzene, dimethyldisulfide (DMDS) and A1C13 in which the mole ratio fo A1C13 to DMDS was 2:1 was complete in 2 hours and afforded 98 % conversion and 93 % yield of thioanisole. In contrast, the same reaction when attempted using a 1:1 mole ratio of A1C13 to DMDS after 6 hours achieved only 66 % conversion and a thionisole yield of only 35 %. So far as is known, this is the first example of a highly efficient electrophilic aromatic substitution of the inactivated benzene ring by an alkanethio group. |
| priorityDate | 1997-05-01^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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