http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1389936-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_26ca28cbb4003b75e5b0edaa9b3d3885 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N57-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01P5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N57-14 |
| filingDate | 1972-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1975-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1389936-A |
| titleOfInvention | Preparation of thiophosphoric acid esters having nematocidal properties |
| abstract | 1389936 Thiophosphoric acid esters VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY INSTITUT KHIMICHESKIKH SREDSTV ZASCHITY RASTENY 12 April 1972 [12 April 1971] 16911/72 Heading C2P Thiophosphate esters of the general formula wherein one of R<SP>1</SP> and R<SP>2</SP> is an n-propyl or isopropyl group and the other is a methyl, ethyl, n-propyl or isopropyl group X is halogen and n is 0, 1 or 2 are obtained by reacting a thiophosphoric acid halide wherein Hal is a halogen atom with a phenol in the presence of an acid binding agent. The reaction is suitably carried out in an inert solvent and preferably at 10‹ to 30‹ C. The invention also includes as novel compounds the esters of Formula I subject to the proviso that when R<SP>1</SP> is ethyl, R<SP>2</SP> is not n-propyl. The products have nematocidal properties and may be used as active ingredients in conventional nematocidal compositions. The thiophosphoric halides (IV) may be obtained by reacting a phosphorous acid halide: (R<SP>1</SP>O)(R<SP>3</SP>O)PHal wherein R<SP>1</SP> and Hal are as defined above and R<SP>3</SP> is methyl, ethyl, n-propyl or isopropyl with a sulphenyl halide R<SP>2</SP>SHal or with a disulphide (R<SP>2</SP>S) 2 and a sulphuryl halide, the reaction being suitably effected in an inert solvent or diluent, e.g. toluene or xylene. An example is given for the preparation of by reacting (C 2 H 5 0) 2 PCI with sulphuryl chloride and di-n-propyldisulphide in toluene at - 10‹ C. under an atmosphere of nitrogen. The compound (C 2 H 5 0)(isoC 3 H 7 S)P(O)Cl is stated to be obtainable by a similar procedure but using diisopropyl disulphide. Reference has been directed by the Comptroller to Specification 1,214,188. |
| priorityDate | 1971-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.