http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-670030-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/C07F9-65522 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-655 |
| filingDate | 1949-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1952-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-670030-A |
| titleOfInvention | Process for the manufacture of esters of thiophosphoric acid |
| abstract | Aromatic esters of dialkoxy thiophosphoric acids are prepared from dialkoxy thiophosphoryl chlorides and phenates or phenols in the presence of an acid binding agent by reacting the components in the presence of metallic copper with heating. The heating may be carried out at a temperature which is not above 100 DEG C., or between 80 DEG and 100 DEG C. The components of the reaction may be dissolved or suspended in an inert solvent, e.g. chlorobenzene. The term "phenol" includes substituted phenols, e.g. nitrophenols and hydroxycoumarins. In the examples the following compounds are prepared. The p-nitrophenyl esters of diethoxy and dimethoxy thiophosphoric acid, the 4-methylumbelliferone esters of diethoxy and dimethoxy thiophosphoric acid, the 6-hydroxy-4-methyl coumarin esters of diethoxy and dimethoxy thiophosphoric acid and the 7-hydroxy-coumarin ester of diethoxy thiophosphoric acid. The Specification as open to inspection under Sect. 91, refers to calcium carbonate, sodium cyanide and pyridine as additional binding agents, and benzene as an inert solvent. This subject-matter does not appear in the Specification as accepted. |
| priorityDate | 1948-04-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.