http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4416834-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/C07F9-1651 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-165 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N57-12 |
| filingDate | 1980-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1983-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2e05d7e4e6a3ceecb693f4a45eb4502c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2e61e882336413c770b15057b19a7f0b |
| publicationDate | 1983-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4416834-A |
| titleOfInvention | Process for the preparation of thiophosphoric acid esters |
| abstract | A process for the preparation of a compound of the formula ##STR1## in which R is alkyl, n X is oxygen or sulphur and n R' is hydrogen or alkyl, n comprising reacting a thiophosphate of the formula ##STR2## in which M is a cation other than NH 4 .sup.⊕, with an ethylmercapto compound of the formula ##STR3## in which Y is a fugitive group, in a polar reaction medium at a temperature between about 30° and 80° C. and at a pH between about 2 and 9. Advantageously X is oxygen and the thiophosphate is produced by reaction of a dialkyl phosphite of the formula ##STR4## with sulphur in the presence of an organic base in an organic solvent and subsequent extraction with aqueous MOH solution. Also Y is advantageously chlorine and the ethylmercapto compound is prepared by heating the corresponding alcohol to about 40°-100° C. and passing hydrogen chloride gas into the pre-warmed alcohol, the reaction solution being used directly without working up. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004176629-A1 |
| priorityDate | 1979-10-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 309.