http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4492800-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/C07C21-19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-2635 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-307 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C22-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C61-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-743 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C21-19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-567 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C21-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-263 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C22-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C22-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 |
| filingDate | 1983-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1985-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_60441449c8d11ff621845b8eb554e3ac http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2b91fea0d710d352a961f5eff50b1158 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d3c9731cf6dbbf7be849201fd8f6fbad |
| publicationDate | 1985-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4492800-A |
| titleOfInvention | Process for the preparation of 1,1-dichloro-alkenes |
| abstract | A process for the preparation of a 1,1-dichloro-alkene of the formula ##STR1## in which R 1 is hydrogen, or an optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, aralkyl, aralkenyl or aryl radical, and n R 2 is an optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, aralkyl, aralkenyl or aryl radical, or n R 1 and R 2 together form an optionally branched and/or optionally benzo-fused hydrocarbon chain, n comprising reacting a carbonyl compound of the formula ##STR2## with a trichloromethanephosphonic acid ester of the formula ##STR3## in which R 3 each individually is an alkyl or phenyl radical, or together are alkanediyl, n in the presence of at least an equimolar amount of magnesium. Advantageously, n R 1 is hydrogen, n R 2 is a C 2 to C 5 alkenyl radical or a radical of the formula ##STR4## Z is a cyano, acetal, carboxyl or C 1 to C 4 alkoxycarbonyl radical, or a radical of the formula COOM, and n M is sodium or potassium, n R 3 each individually is a C 1 to C 4 alkyl or phenyl radical, or the two radicals R 3 together are C 2 to C 5 alkanediyl, n about 0.95 to 1.4 moles of the trichloromethanephosphonic acid ester and about 1.5 to 4 moles of magnesium are employed per mole of the carbonyl compound, and the reaction is carried out at a temperature between about 0° and 150° C. in a polar aprotic solvent. The products are known intermediates, especially for insecticides. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4673760-A |
| priorityDate | 1980-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 114.