20610-34-8Relevant articles and documents
Hydrolysis and alcoholysis of phosphinates and phosphonates
Harsági, Nikoletta,Keglevich, Gy?rgy,Sz?ll?si, Betti,Varga, Petra Regina
, (2021/11/04)
Phosphinic and phosphonic acids useful intermediates and biologically active compounds may be prepared from their esters: phosphinates and phosphonates, respectively, by acid-catalyzed hydrolysis either on conventional heating or on MW irradiation. The transesterification of alkyl phosphinates took place only in the presence of suitable ionic liquids as the catalysts. In the cases of phenylphosphonates, depending on the nature of the ionic liquid, the formation of the ester was accompanied by the fission of the C–O bond.
Application of heteropolyacid in catalytic synthesis of material compound
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Paragraph 0056-0061; 0066-0067, (2021/04/14)
The invention provides an application of heteropolyacid in catalytic synthesis of a diarylphosphonate compound. The method is characterized by comprising the following steps: in a protective gas atmosphere, taking diarylphosphonic acid and halogenated alkane as raw materials, heteropolyacid as a catalyst and an organic solvent as a solvent, and performing reacting to obtain the diarylphosphonate compound. According to the preparation method disclosed by the invention, only an extremely small amount of catalyst is needed, the reaction temperature is relatively mild, the reaction time can be obviously shortened, the yield and purity are relatively high, and an unexpected technical effect is achieved.
Preparation method of compound containing P-O bond or P-S bond
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Paragraph 0192-0196, (2020/09/12)
The invention discloses a preparation method of a compound containing a P-O bond or a P-S bond. The method comprises the following steps: a compound containing hydroxyl or sulfydryl and a phosphorus reagent are taken as initial raw materials; then, the initial raw materials are put into an inert gas atmosphere; and under the action of trifluoromethanesulfonic anhydride (Tf2O) and dimethyl sulfoxide (DMSO), the compound containing hydroxyl or sulfydryl, the phosphorus reagent, the trifluoromethanesulfonic anhydride and the dimethyl sulfoxide in a molar ratio of (1-5): (1-2.5): (2-3): 2 react inan organic solvent at the reaction temperature of 25-100 DEG C for 6-20 hours to obtain the compound with the structural general formula (I). The reagents used in the method are low in toxicity and environmentally friendly, and use of precious metal catalysts high in price and toxicity is avoided. The reagents trifluoromethanesulfonic anhydride (Tf2O) and dimethyl sulfoxide (DMSO) used in the method are low in toxicity and very low in cost, so that the method is green, environment-friendly, high in economy and suitable for large-scale production.