http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-710117-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8857d9285f4a393618523d052bf765df |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-5004 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-5059 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-48 |
| filingDate | 1951-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1954-06-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-710117-A |
| titleOfInvention | Improvements in or relating to process for producing an organic phosphine and the resulting product |
| abstract | The invention comprises the preparation of organic derivatives of phosphine, particularly mono- and di-substituted phosphines by reacting an olefine or a halogen substituted olefine with phosphine in the presence of an acid compound, which does not oxidize phosphine, as catalyst, e.g. hydrogen fluoride, hydrocarbon sulphonic acids or trifluoroacetic acid, and comprises also mono-tertiaryalkyl phosphines such as the tertiary butyl, octyl and dodecyl phosphines, so prepared. Preferably the olefine which is suitably a mono-olefinic hydrocarbon is contacted with at least an equimolar proportion of phosphine at a temperature between 0 DEG and 250 DEG C. in the presence of at least 0.1 mol. of a non-oxidizing liquid acid compound as a catalyst and at superatmospheric pressure. The olefines which may be used include olefinic hydrocarbons and their halogenated derivatives. Many suitable olefinic hydrocarbons are specified. Specified catalysts include hydrogen fluoride, hydrogen chloride, hydrogen bromide, the phosphoric and fluorophosphoric acids, halogensulphonic acids, dihydroxy fluoboric acid, alkyl and aryl sulphonic acids, alkanephosphinic and alkanephosphonic acids, boron trifluoride and complexes of boron trifluoride with oxygenated organic compounds. In examples phosphine is treated according to the invention with ethylene, propylene, dodecene-1, isobutylene, octene, propylene tetramer, polybutylene, 4-methylclohexene, 1-methylcyclopentene, limonene, isoprene, styrene and b -neopentyl allyl chloride to give products mainly comprising the corresponding mono-substituted phosphines. Oxidation products of alkylphosphines.-The alkylphosphines produced above are oxidized by oxygen, nitrogen dioxide or hydrogen peroxide to give mixtures of phosphoric acid and alkylphosphonic and alkylphosphinic acids. With nitrogen dioxide unidentified nitrogen-containing compounds are also formed. Tertiary dodecanephosphinic acid is oxidized by nitric acid to tertiary dodecanephosphonic acid. Hydroxyalkylphosphines.-Monoalkylphosphines treated with formaldehyde or ethylene oxide form polyhydroxy compounds of the formul : RP(CH2OH)2, RP(CH2OH)3 and RP[(C2H4O)nH]2. Separation of olefines.-Secondary and tertiary olefines may be separated by selective reaction of the tertiary olefine with phosphine according to the invention to give a tertiary alkyl phosphine and separating the unreacted secondary olefine.ALSO:Tertiary octanephosphonic and tertiary octane phosphinic acids are incorporated in asphalts employed with wet aggregates. |
| priorityDate | 1950-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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