The invention relates to 3-dialkoxyphosphonoalkyl-dihydrouracils. These compounds are manufactured by reacting dihydrouracils substituted in the 3-position by a halogenalkyl group with a trialkyl phosphite. The compounds are useful as flame retardants which may be incorporated into polymeric materials or their starting substances.
                            本发明涉及3-二烷氧基
膦酸烷基-二氢尿
嘧啶。这些化合物通过将3位被卤代烷基取代的二氢尿
嘧啶与三烷基
膦酸酯反应制得。这些化合物可用作阻燃剂,可被加入到聚合物材料或其起始物质中。