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三氯化磷是磷化工发展的基础原料之一,产量大,用途广。它与烷醇在碱性的条件下酯化反应生成亚磷酸三烷基酯。如亚磷酸三乙酯可用于杀虫剂杀螟威的合成,也可用作塑料的增塑剂和稳定剂,以及润滑油和润滑脂的添加剂。而亚磷酸三甲酯可用于合成农药敌敌畏、磷胺、久效磷、杀虫畏等,也可用来制造塑料及木材的阻燃剂,聚合物催化剂、汽油及涂料添加剂等。 它与酚类,如与苯酚酯化生成亚磷酸三苯酯,亚磷酸三苯酯通过酯交换又可制备其它酯类。如在碱性催化剂甲醇钠的存在下,与2—乙基己醇的酯交换生成亚磷酸—苯二
Phosphorus trichloride is one of the basic raw materials for the development of phosphorus chemical industry, with large output and wide application. It is alkylated with alkanol under alkaline conditions to form trialkyl phosphites. Such as triethyl phosphite can be used for insecticide fenitrothion synthesis, plasticizers can also be used as plasticizers and stabilizers, and lubricants and grease additives. The trimethyl phosphite can be used for the synthesis of pesticides such as dichlorvos, phosphonamides, monocrotophos, insecticide, etc., can also be used to manufacture plastic and wood flame retardants, polymer catalysts, gasoline and paint additives. It is with phenols, such as with phenol esterification to generate triphenyl phosphite, triphenyl phosphite transesterification and other esters can be prepared. For example, transesterification with 2-ethylhexanol in the presence of a basic catalyst of sodium methoxide yields phosphite-benzenedi