http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-837073-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N57-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-425 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N57-18 |
| filingDate | 1958-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1960-06-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-837073-A |
| titleOfInvention | Phosphonic acid ester fluorides |
| abstract | The invention comprises compounds of the formula <FORM:0837073/IV (b)/1> where X and Y are oxygen or sulphur, R is an alkyl radical containing up to 4 carbon atoms, and R1 is an alkyl radical containing up to 6 carbon atoms or a monochloro-substitution product thereof. These compounds may be prepared by reacting a compound of formula <FORM:0837073/IV (b)/2> with an alkali metal fluoride in the presence of an alkanol or monochloroalkanol containing 1-6 carbon atoms; the reaction may be effected in an inert solvent, preferably at 65-80 DEG C. The starting phosphonic or thionophosphonic acid chlorides may be prepared by reacting a vinyl ether or vinyl mercaptan RX-CH = CH2 with PCl5 to give RX-CHClCH2-PCl4, and reacting this with H2SO3\t or SO2 to give <FORM:0837073/IV (b)/3> This last compound, or the compound p RX-CHCl-CH2-PCl4 may be reacted with H2S to give the corresponding thionophosphonic acid derivative.ALSO:Insecticidal compositions comprise one or more phosphonic acid ester fluorides of the formula <FORM:0837073/VI/1> where X and Y are oxygen or sulphur, R is an alkyl radical containing up to 4 carbon atoms, and R1 is an alkyl radical containing up to 6 carbon atoms or a monochloro-substitution product thereof; together with an inert solid or liquid carrier or diluent. The concentration of active ingredient may be 0.00001-1% by weight. Suitable diluents are talc, chalk, bentonite, clay, water (with or without an emulsifier), an alcohol, a ketone or a liquid hydrocarbon. Other insecticides and/or fertilizers may be present. |
| priorityDate | 1957-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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