http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-869844-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c72d118f5664072de841f9c5c34b9d99 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F7-1804 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F7-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-00 |
| filingDate | 1959-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1961-06-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-869844-A |
| titleOfInvention | Method of preparing hydrolyzable silyl thioethers |
| abstract | Hydrolysable silyl thioethers of the formula: (RSR1)mSi(R11)nX4-m-n where R and R11 are hydrocarbon radicals free of olefinic unsaturation, R1 is an alkylene radical having at least 2 carbon atoms, X is a hydrolysable group, m is 1, 2 or 3, n is 0, 1 or 2 and m+n is at most 3, are prepared by irradiating with ultra-violet a mixture of a mercaptan of the formula RSH and a silane containing at least one silicon-bonded olefinically unsaturated hydrocarbon radical and at least one silicon-bonded hydrolysable group. The groups R and R11 include alkyl, cycloalkyl, aryl and aralkyl radicals. The hydrolysable groups include halogeno, alkoxy, aryloxy and acyloxy radicals. In the Examples: (2) (CH3)(CH3SCH2CH2)Si (OC2H5)2 is prepared from methyl mercaptan and MeViSi(OC2H5)2; (3) (CH3)(C6H5SCH2CH2) Si(OC2H5)2 is prepared from phenyl mercaptan and MeViSi(OC2H5)2; (4) (CH3) (C6H5SCH2CH2)SiCl2 is prepared from phenyl mercaptan and MeViSiCl2; (5) (CH3)(C12H25 SCH2CH2)Si(OC2H5)2 is prepared from dodecyl mercaptan and MeViSi(OC2H5)2; (6) (CH3) <FORM:0869844/IV (a)/1> is prepared from 2-ethylhexyl mercaptan and MeViSi(OC2H5)2; the product of (4) is converted to the acetoxy derivative by refluxing with sodium acetate; (8) the product of (2) is hydrolysed with dilute HCl to give a polysiloxane of unit formula: <FORM:0869844/IV (a)/2> In Example 1, given for comparison, a solution of sodium in butyl mercaptan and ViSi(OEt)3 is refluxed to give C4H9SCH2CH2Si(OC2H5)3. Uses: as polysiloxanes for lubricants, hydraulic fluids, moulding compositions and wire insulation. Specification 618,608 is referred to. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3947436-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2015078156-A |
| priorityDate | 1958-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.