http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-673451-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_043c6a4e90e797f67a0e5cb252d30c56 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-5059 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-50 |
| filingDate | 1950-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1952-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-673451-A |
| titleOfInvention | Process for the production of organic phosphines |
| abstract | Organic phosphines are made by reacting derivatives of trivalent phosphorus containing a pH group with an organic compound containing at least one aliphatic carbon-to-carbon multiple bond in the presence of free radicles. Many compounds are specified, the following being representative of the classes listed: 2-butene, cyclohexene, allyl alcohol, allyl chloride, 3-sulpholene, methyl acrylate, methyl vinyl ether, styrene, butadiene, methallyl mercaptan, methacrylonitrile, diallyl sulphide, 3 - butenyl - phosphine, dimethallylamine and methyl vinyl ketone. Mono-olefinic compounds, particularly alkenes, are preferred. Phosphorus compounds listed include phosphine halides <FORM:0673451/IV (b)/1> where X is halogen and Y halogen, hydrogen or an organic radicle attached to P via a C-atom, phosphine salts <FORM:0673451/IV (b)/2> where M is a metal atom and R is hydrogen, halogen or an organic radicle attached to P via a C-atom and compounds of formula <FORM:0673451/IV (b)/3> where R is hydrogen or an organic radicle attached to P via a C-atom, many of the last being specified including phosphine and ethyl-, dibutyl-, cyclohexyl-, 3-chloropropyl-, bis-(2-methyl-3-aminopropyl)-, phenyl-, 3-butenyl-, bis-(3-hydroxypropyl)-, 3-allyloxy-, 3-amylmercaptopropyl-, 3-carbomethoxypropyl-, eicosyl- and 3 - acetylpropyl - phosphine. Preferably saturated phosphines are used. Unsaturated hydrocarbon substituted phosphines may act as the above unsaturated reactant resulting in polymeric phosphine derivatives. Preferably reactive compounds do not have more than about 20 carbon atoms. The free radicles may be produced by thermally or photo-chemically dissociating a solvent or other compound added for this purpose, e.g. N-chloramides, organometallic compounds, peroxides or carbonyl compounds such as acetone. Peroxides, Peroxides, especially tert.-alkyl peroxides, are particularly suitable. Amounts of about 1 to 10.0 mol. per cent of initiator are specified. Liquid or vapour phase reaction may occur and inert solvents, many of which are specified may be present. Mixtures of the primary, secondary and tertiary phosphines obtained may be separated by fractionation. In examples the multiple-bond reactants are: 1-butene, 1-octene, 2-butene, isobutene, cyclohexene, allyl alcohol, allyl amine, allyl chloride, methyl vinyl sulphide, styrene, dibutyl 2-propene-phosphonate, methyl vinyl ketone, methyl acrylate, allyl acetate and methyl vinyl ether and they are all reacted with phosphine in the presence of such initiators as di-tertiary-butyl peroxide, ultra-violet light and acetone at temperatures varying from 20 DEG to 122 DEG C. to give the desired substituted phosphines usually obtained as a mixture separable by fractionation. In some cases the products are oxidized with nitric acid to yield phosphoric and phosphinic acids and phosphine oxides. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2822376-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2896403-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3206496-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4922025-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0528167-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4321213-A |
| priorityDate | 1949-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 81.