66324-59-2Relevant academic research and scientific papers
Preparation method of phosphine series reactive flame retardant monomer
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Paragraph 0056; 0057, (2019/02/27)
The invention provides a preparation method of a phosphine series reactive flame retardant monomer. The preparation method comprises the following steps: preparing a compound with a structure shown ina formula VI or a formula VII; under the action of alkaline solution, hydrolyzing the compound with the structure shown in the formula VI or the formula VII, then adding acid solution to regulate acid, then adding inorganic salt to carry out saturation processing, then adding an organic solvent to extract, and then performing evaporation drying on the organic solvent to obtain a compound with a structure shown in a formula VIII or a formula IX; adding a dehydrating agent into the compound with the structure shown in the formula VIII or the formula IX to enable the compound with the structureshown in the formula VIII or the formula IX to be dewatered and cyclized so as to obtain the phosphine series reactive flame retardant monomer with a structure shown in a formula I or a formula II. The preparation method of the phosphine series reactive flame retardant monomer, which is provided by the invention, is simple in process, high in reaction yield and simple and convenient to operate, does not need to use special equipment, is sufficient and reliable in source of raw materials, low in cost, environmentally friendly and suitable for industrial production.
Michael Addition of Phosphorylated CH Acids under Conditions of Phase-Transfer Catalysis
Tarasenko,Mukhaiimana, Prote,Tsvetkov,Lukashev,Beletskaya
, p. 52 - 58 (2007/10/03)
Michael addition of ethyl diethoxyphosphinoylacetate and tetraethyl methylenediphosphonate to compounds with an activated double bond under conditions of phase-transfer catalysis is described.
A CONVENIENT PREPARATION OF α-PHOSPHONO ESTERS AND LACTONES VIA C-P BOND FORMATION
Lee, Koo,Wiemer, David F.
, p. 87 - 90 (2007/10/02)
The reaction of ester and lactone enolates with diethyl phosphorochloridite, followed by air oxidation of the immediate reaction products, has proven to be a general alternative to the traditional Arbuzov synthesis of α-phosphono esters and lactones.
