http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1008451-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6b6fc801b5bfe5304ffa40d938db6e09 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N57-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D285-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D285-125 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-65395 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D285-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N57-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D285-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D285-125 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-6539 |
| filingDate | 1962-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1965-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1008451-A |
| titleOfInvention | Process for the production of new thiophosphoric acid esters |
| abstract | The invention comprises thiophosphoric esters of formula <FORM:1008451/C2/1> where R1 is an alkyl, alkoxyalkyl or alkythioalkyl radical, the hydrocarbon moities of these radicals having 1-4 carbon atoms, benzyl, C3- 4 alkenyl or tetrahydrofurfuryl; R2 and R3 are each C1- 3 alkyl; and X, Y and Z are independentl oxygen or sulphur. They may be prepared by reacting a compound of formula <FORM:1008451/C2/2> where Hal is chlorine or bromine with a compound <FORM:1008451/C2/3> in the presence of an acid binding agent or with a salt of a compound III. A solvent may be used and temperatures of 20-80 DEG C. are mentioned. The products may be stabilized by the incorporation of epoxides and may be used as pesticides (see Division A5). The compounds of Formula II may be prepared by the action of PCl5, PBr3 or SOCl2 on the corresponding 3-hydroxymethyl thiadiazole compounds, themselves obtainable by reacting formaldehyde with a compound of formula <FORM:1008451/C2/4> Examples include the preparation of the following chloromethyl compounds of Formula II, the corresponding hydroxymethyl compounds being generally isolated also: X = S, Y = O, R = methyl, ethyl, isopropyl, methoxyethyl, allyl; X = O, Y = O, R1 = methyl, isopropyl, propyl, butyl, methoxyethyl, benzyl, tetrahydrofurfuryl, allyl; X = O, Y = S, R1 = methyl, ethyl, isopropyl; X = S, Y = S, R1 = methyl. The preparation of others may be inferred from a table of final products prepared. Compounds of Formula IV are prepared in which X = O, Y = O and R1 = methyl, isopropyl, butyl, methoxyethyl and allyl by the action of phosgene on R1OC(S)NHNH2 and in which X = O, Y = S and R1=isopropyl from i-pr-Oc(S) NHNH2 and carbon disulphide in alcoholic potash.ALSO:Pesticidal compositions comprise a thiophosphoric ester of formula <FORM:1008451/A5-A6/1> where R1 is an alkyl, alkoxyalkyl or alkylthioalkyl radical, the hydrocarbon moities of these radicals having 1-4 carbon atoms, benzyl, C3 - 4 alkenyl or tetrahydrofurfuryl; R2 and R3 are each C1 - 3 alkyl; and X, Y and Z are independently oxygen or sulphur, together with a carrier. Epoxy compounds may be present as stabilizers. Dusts suspensions, emulsions and solutions are mentioned. Other insecticidal, nematicidal, fungicidal and acaricidal substances may be present e.g. hexachlorocyclohexane, DDT, toxaphene, calcium arsenate, other organophosphorus compounds of which a number are specified, N-tri-chloromethylsulphenyl tetrahydro-phthalimide or N-methylsulphonyl-N-trichloromethylsulphenyl-p-chloroanilide or sulphur. |
| priorityDate | 1961-10-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 68.