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    • 3. 发明授权
    • Method of preparing isocyanurates
    • 制备异氰脲酸酯的方法
    • US3684807A
    • 1972-08-15
    • US3684807D
    • 1970-05-18
    • PERRY A ARGABRIGHTCHARLES H DEPUY
    • ARGABRIGHT PERRY ADEPUY CHARLES H
    • C07D251/34C07D55/38
    • C07D251/34
    • A method of preparing isocyanurates, particularly unsymmetrically trisubstituted isocyanurates, comprising forming a reaction mixture of an organic isocyanate, an organic halide and an alkali or alkaline earth metal cyanate, and carrying out the reaction between the isocyanate, the halide and the metal cyanate in the presence of an aprotic dipolar solvent at a temperature in the range of from about 25*C to about 300*C. Pressures of the order of about 0.1 to 30 atmospheres and an inert atmosphere advantageously are employed in carrying out the reaction. The products may be used as intermediates in the production of pharmaceuticals, insecticides, disinfectants, and in the preparation of polymers.
    • 一种制备异氰脲酸酯,特别是不对称三取代异氰脲酸酯的方法,包括形成有机异氰酸酯,有机卤化物和碱金属或碱土金属氰酸酯的反应混合物,并在异氰酸酯,卤化物和金属氰酸酯之间进行反应 在约25℃至约300℃的温度下存在非质子偶极溶剂。约0.1至30个大气压和惰性气氛的压力有利地用于进行反应。 该产品可用作生产药物,杀虫剂,消毒剂和聚合物制备中的中间体。