http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-8602830-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_14effe3850d2129f863b969dac4f1db8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-5304 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-53 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-42 |
| filingDate | 1985-03-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1985-12-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-8602830-A1 |
| titleOfInvention | PROCEDURE FOR OBTAINING OXIDES OF PHOSPHINE |
| abstract | PROCEDURE FOR OBTAINING PHOSPHINE OXIDES OF FORMULA (V). INCLUDES: REACTING A PHOSPHINE R3PH2 WITH AN ALKYL ESTER OF FORMULA CH2 CHCO2R4, IN WHICH R3 IS AN ALKYL RADICAL OF 2 TO 6 CARBON ATOMS AND R4 IS AN ALKYL RADICAL OF 1 TO 4 CARBON ATOMS, AT A TEMPERATURE BETWEEN 50 AND 110C IN TOLUENE OR HEPTANE IN THE PRESENCE OF AZOBISISOBUTITONITRILE; SUBSEQUENT OXIDATION OF COMPOUND (III) OBTAINED IN A 10-40% AQUEOUS SOLUTION, FOR 1-5 HOURS, AT A TEMPERATURE BETWEEN 50 AND 80C WITH HYDROGEN PEROXIDE; HYDROLYSIS OF THE PHOSPHINE OXIDE OBTAINED IN THE PREVIOUS STAGE WITH SULFURIC OR HYDROCHLORIC ACID AT 1-10% FOR 5-10 HOURS. OF APPLICATION IN THE PRODUCTION OF FIBER-FORMING POLYAMIDES. |
| priorityDate | 1984-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 19.