http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1444684-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_64d898bad1b0154b864d4027cdaf20af |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-4078 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N57-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N57-20 |
| filingDate | 1974-01-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1976-08-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1444684-A |
| titleOfInvention | Unsaturated phosphonate esters and insecticidal compositions containing such esters or other unsaturated phosphonate esters having synergist properties |
| abstract | 1444684 Unsaturated phosphonate diesters S C JOHNSON & SON Inc 31 Jan 1974 [9 Feb 1973] 4631/74 Heading C2P [Also in Division A5] Phosphonate diesters of the Formula (I) wherein R 1 is an alkyl or alkenyl radical having 2-12 carbon atoms or is cyclohexyl and R 2 is propargyl, C 1 -C 5 alkyl or 2-(2-butoxyethoxy)- ethyl, with the proviso that R 2 is propargyl when R 1 is cyclohexyl, are obtained (a) (when R 2 is propargyl) by reacting a dichloride R 1 P(O)Cl 2 (1 mole) with 2 mols. of propargyl alcohol in the presence of 2 equivalents of a base, e.g. triethylamine and suitably in the presence of a solvent, e.g. diethyl ether, or (b) (when R 2 is other than propargyl) by reacting the dichloride with one equivalent of alcohol (R 2 OH) and one equivalent of a base and suitably in a solvent and then reacting with one equivalent of propargyl alcohol and of the base. The products are useful as synergists for insecticides and the invention also includes as novel products the phosphonates of Formula I with the added proviso other than those in which R 1 is a C 2 -C 12 alkenyl radical. n-Butylphosphonic dichloride is obtained by reacting diethyl n-butyl phosphonate with PCl 5 at 105 C. for 6 hours. Diethyl n-butyl phosphonate is obtained by reacting n-butyl bromide with triethylphosphite under reflux conditions. Dialkylalkylphosphonates can also be obtained by reacting a dialkyl phosphite, e.g. diethyl phosphite, with sodium in a dry solvent, and then reacting with an alkyl halide, e.g. n-octyl bromide. |
| priorityDate | 1973-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.