A dialkyl dialkoxycarbonylphenylphosphonate which is useful as a resin modifier, a process for producing the same in high yield at a low cost, and a process for producing a dicarboxyphenylphosphonic acid in high yield at a low cost are described. The process for producing a dialkyl dialkoxycarbonylphenylphosphonate comprises heating and reacting a dialkoxycarbonylphenyl halide with a trialkyl phosphate in the presence of a catalyst comprising an element of group VIII of the periodic table (such as an alumina supported palladium catalyst) and hydrolyzing the obtained dialkyl dialkoxycarbonylphenylphosphonate in the presence of an acid or base to produce a dicarboxyphenylphosphonic acid.
本文描述了一种二烷基二烷氧羰基
苯基膦酸酯,可用作
树脂改性剂,以及一种在低成本高产率下制备该化合物和二羧基
苯基膦酸的方法。制备二烷基二烷氧羰基
苯基膦酸酯的方法包括在催化剂存在下(例如,铝负载
钯催化剂)加热反应二烷氧羰基苯卤和三烷基
磷酸酯,并在酸或碱的存在下
水解所得的二烷基二烷氧羰基
苯基膦酸酯以制备二羧基
苯基膦酸。