http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-953834-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_634538388f2dd27ea0a8bc2a2032c517 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C323-00 |
| filingDate | 1963-01-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1964-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-953834-A |
| titleOfInvention | Production of alkylmercaptophenols |
| abstract | 4-Alkylmercaptophenols are prepared by reacting phenol, or a substituted phenol having a free 4-position, with a dialkyl disulphide in the presence of a phosphoric acid catalyst. Specified phenols which may be treated are phenol, m-cresol, 3-ethyl-and-3-isopropyl-phenol, 2-tertbutylphenol, 3-methyl-6-isopropylphenol, 3, 5-diisopropylphenol, 2, 6-diisopropylphenol, 2-methyl-5-isopropylphenol, 3, 5-dimethylphenol, 2-phenylphenol, 3-chlorophenol and 2-methoxyphenol. Specified dialkyl disulphides are dimethyl, diethyl, di-n-and di-iso-propyl, di-n-and di-iso-butyl di-n-and di-iso-amyl and di (chloromethyl) disulphides. The catalyst may be ortho-, meta-, pyro- or poly-phosphoric acid. The reaction may be effected under reflux, and the catalyst may be separated from the product and re-used. The alkylmercaptans obtained as by-products may be used as such or oxidized to the corresponding disulphides. Examples are given in which phenol and m-cresol are treated with dimethyl disulphide, minor proportions of 2-methylmercaptophenol being also obtained when phenol is treated. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4533753-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-8404092-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4602113-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-RE31771-E |
| priorityDate | 1962-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 48.