- Conversions of 2-phenyl-1,3,2-dioxaphospholane under the action of hydrogen chloride
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The reaction of 2-phenyl-1,3,2-dioxaphospholane with HCl gives a mixture of phenylphosphinic acid, bis(2-chloroethyl) phenylphosphonate, and phenylphosphine; therewith, intermediate oligomeric phosphonites, hydrophosphoryl compounds, and phosphoranes were detected. Thermal treatment of the reaction mixture results in formation of ethylene phenylphosphonate and (2-chloroethyl)phenylphosphinate.
- Lazarev,Bredikhina,Bredikhin
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- Preparation method for catalytically compounding benzyl phosphonate by using basic ionic liquid
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The invention belongs to the technical field of organic synthesis and relates to a preparation method for benzyl phosphonate as a key intermediate of an acyl phosphine oxide type photoinitiator. According to the method, benzene, phosphorus trichloride and alkyl alcohol are taken as main raw materials and are compounded into benzyl phosphonate through two-step reaction. The preparation method is characterized in that a target product is generated through the low-temperature reaction of the dichlorophenyl phosphine and alcohol under the condition of a gemini basic ionic liquid catalyst in the second step reaction, the reaction temperature is controlled within -10 DEG C to 10 DEG C, the dichlorophenyl phosphine is dropwise added and then the mixture reacts for 0.5-7 hours under a stirring condition after the temperature is increased to 30-50 DEG C. The preparation method has the advantages of low cost, simple and convenient after-treatment, high yield, and the like, and is suitable for industrial production.
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Paragraph 0046; 0048; 0049
(2018/01/12)
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- Imide-amide rearrangement of cyclic phosphorimidates: A mechanistic study
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Studies aimed at the development of new synthetic pathways for the preparation of chiral cyclic oxaza and diaza phosphoramides suitable for use in asymmetric chemistry led us to the investigation of the imide-amide rearrangement of cyclic phosphorimidates
- Cabrita, Eurico J.,Afonso, Carlos A. M.,Gil De Oliveira Santos, Antonio
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p. 1455 - 1467
(2007/10/03)
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- An Electron Spin Resonance Study of the Addition of Alkoxyl and Siloxyl Radicals to Pyrrolylphosphines
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E.s.r. spectra are reported for phosphoranyl radicals generated by addition of ButO., EtO., or Me3SiO. to the pyrrolylphosphines (EtO)2PNC4H4 and in hydrocarbon solution.The pyrrolylphosphoranyl radica
- Baban, Jehan A.,Roberts, Brian P.
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p. 876 - 882
(2007/10/02)
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