http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-808259-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/A01N57-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-1651 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-165 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N57-12 |
| filingDate | 1957-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1959-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-808259-A |
| titleOfInvention | Thiophosphoric acid esters |
| abstract | The invention comprises esters of formula <FORM:0808259/IV (b)/1> where R is an alkyl radical, an aryl radical which may be substituted, e.g. by halogen, nitro or alkoxy, a polycyclic radical or a heterocyclic radical, R1 is a C1-4 alkyl radical, and X is oxygen or sulphur. They may be prepared by reacting salts of O,O-dialkyl thiol- or thionothiol-phosphoric acids with N-acyl-chloroacetamides, generally in an inert solvent such as water, alcohols and ketones, and preferably between about room temperature and 60-80 DEG C. Specified acyl radicals are those derived from acetic, propionic, butyric, isobutyric, valeric, phenylacetic, benzoic, o-, m-and p-chlorobenzoic, the nitrobenzoic, toluic, naphthoic, pyridinic and quinolinic acids. Examples describe the preparation by the above method of compounds in which (1) R is methyl, X is sulphur and R1 is ethyl, propyl or butyl; (2) R1 is methyl, X is sulphur and R is methyl, ethyl or propyl; (3) X is oxygen, R is methyl when R1 is methyl, ethyl or propyl, ethyl when R1 is ethyl, or propyl when R1 is ethyl; (4) R is phenyl, X is sulphur and R1 is ethyl; (5) R is phenyl, X is oxygen and R1 is ethyl; (6) R is p-chlorophenyl, X is sulphur and R1 is ethyl; (7) R is p-chlorophenyl, X is oxygen and R1 is ethyl.ALSO:Insecticidal compositions comprise thiophosphoric esters of formula <FORM:0808259/VI/1> where R is an alkyl or aryl radical which may be substituted, e.g. by halogen, nitro or alkoxy, a polycyclic radical or a heterocyclic radical, R1 is a C1-4 alkyl radical and X is O or S. Specified R-CO- radicals are those derived from acetic, propionic, butyric, isobutyric, valeric, phenylacetic, benzoic, chlorobenzoic, nitrobenzoic, toluic, naphthoic, pyridinic and quinolinic acids. They may be applied in concentrations from 0.001 to 1 per cent, diluted with solid or liquid carriers such as talc, chalk, bentonite, clay, water and organic solvents. Aerosols may be used or they may be applied by dusting or spraying. In an example the compound in which R is CH3, R1 is C2H5 and X is S is dissolved in acetone and diluted to 0.01 per cent with water in the presence of an emulsifier such as a polyglycol ether of benzyl-hydroxydiphenyl. |
| priorityDate | 1956-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.