| abstract |
A dialkyl phosphinate preparation method, comprising: using dialkyl phosphinate and a halogenated compound as raw materials, and reacting under the action of a catalyst to obtain dialkyl phosphinate, the catalyst being one or more of a phase transfer catalyst or an amphoteric compound, and comprising at least one of a cationic polyalkyl quaternary ammonium salt compound, a cationic halogenated polyalkyl quaternary ammonium salt compound, alkyl ammonium chloride, alkyl ammonium bromide, an anionic alkyl sulfate compound, alkyl sulfonate, alkylbenzene sulfonate, a nonionic surfactant, and a quaternary phosphonium salt. The dialkyl phosphinate is synthesized by using the dialkyl phosphinate and the halogenated compound as raw materials by means of a one-step method, and compared with existing traditional synthesis methods, the present invention has the advantages that the yield is higher, byproducts are few, separation is easy, the steps are simple, consumed time is short, the process is safe and environmentally friendly, costs are low, and implementation is easier. |