http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-980510-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5d9f3ca41550d315642580237250c5b0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D277-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D277-54 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D277-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D277-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D277-54 |
| filingDate | 1961-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1965-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-980510-A |
| titleOfInvention | Process for the purification of thioethers |
| abstract | Solutions or dispersions of thioethers containing the group \sYC-S-C\sZ, which may or may not form part of a ring, contaminated with compounds containing one of the groups -SH, - CS - NH -, - C(SH) = N - or - NH - CS - N \sZ, are purified by contacting the solution or dispersion with an inorganic silver compound insoluble in the solution or dispersion. The silver compound may be silver oxide, silver carbonate or a silver halide, and preferably is supported on solid material, e.g. diatomaceous earth, fuller's earth, silica gel, silicates, cellulose and polymeric resin materials, which is mixed with the solution or dispersion or which is packed into a column through which the solution or dispersion is passed. The thioethers may have the formula <FORM:0980510/C2/1> where R is a hydrogen atom, an alkyl group (which may be substituted by hydroxy, alkoxy, or sulpho groups), an aryl group (which may be substituted by hydroxy, alkoxy, sulpho, chloro, carboxy, sulphobenzamido, carbobutoxyphenyl or diamylphenoxyacetoxyphenyl groups) or an aralkyl group, R1 is an aryl group and Q is oxygen, sulphur or an imino group. The thioethers also may be derivatives of 1-naphthols and phenols of formula <FORM:0980510/C2/2> where R2 may be nitro, chloro, acylamido, or alkylcarbamyl groups. In examples an acetone solution of 5-benzylidene-3-hexadecyl-2-phenylimino - 4 - thiazolidone contaminated with N-hexadecyl-N1-thiourea is purified by passing it through columns packed with silver oxide supported on diatomaceous earth and on cellulose. Other thioethers mentioned are 5[31-(211,411-ditertiaryamylphenoxyacetoxy) - benzylidene] - 3 - phenyl - 2 - phenylimino - 4 - thiazolidone, 2 - (21 - nitrophenylthio) - 1 - naphthol, 2 - (21 - nitro - 41 - chlorophenylthio) - 1 - naphthol, 2 - (31 - octadecylcarbamylphenylthio) - 1 - naphthol, 2 - (21 - palmitoylamidophenylthio) - 1 - naphthol, and 2 - (21 - palmitoylamido - 4 - chloro-phenylthio)-1-naphthol. 2 - (211 - Nitrophenylthio) - 1 - naphthol is prepared by heating a -naphthol with 2-nitrophenyl sulphenyl chloride in carbon tetrachloride under reflux. Specifications 748,190 and 770,494 are referred to. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0047109-A1 |
| priorityDate | 1960-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.