http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1477819-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8efbae6056f7ee0275c50b0f1e7243be |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F7-2224 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F7-22 |
| filingDate | 1975-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1977-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1477819-A |
| titleOfInvention | Method of preparing organotin compounds |
| abstract | 1477819 Triorganotin carboxylates M & T CHEMICALS Inc 8 Dec 1975 [6 Dec 1974] 50243/75 Heading C2J A triorganotin derivative of an ethylenically unsaturated mono- or dicarboxylic acid of the formula R<SP>2</SP>(CO.OH) n where n is 1 or 2 and R<SP>2</SP> is an "n-valent" C 2-20 hydrocarbyl radical having a double bond between 2 adjacent C atoms that do not form part of an aromatic ring structure, is prepared by reacting the acid or an anhydride thereof with a stoichiometric amount of a triorganotin hydroxide or bis-(triorganotin) oxide, removing the by-product water from the reaction mixture by contact with a solid, chemically inert dehydrating agent sufficient to remove at least 95% of the water present and separating the triorganotin derivative from the dehydrating agent. The reaction may be effected with slight heating in a solvent such as mineral spirits or in the absence of a solvent. The acid may be acrylic, methacrylic, crotonic, isocrotonic, 3-butenoic, oleic, 1-cyclohexene-1- carboxylic, cinnamic, abietic, maleic, fumaric, citraconic, itaconic or tetrahydrophthalic acid. The dehydrating agent may be anhydrous MgSO 4 , CaSO 4 , a calcium halide, Na 2 SO 4 , K 2 CO 3 , activated alumina, silica gel or a type 4A or 5A molecular sieve. In the examples, bis- (tributyltin)oxide is reacted with methacrylic acid. |
| priorityDate | 1974-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.