申请人:Warner-Lambert Company
公开号:US06022975A1
公开(公告)日:2000-02-08
An improved process for the preparation of a diester of phosphoric acid 2,5-dioxo-4, 4-diphenyl-imidazolidin-1-ylmethyl ester is described where an alkali metal phosphate is treated with a 3-(chloromethyl)- or 3-(bromomethyl)-5,5-diphenyl-2,4-imidazolidinedione to afford the desired product, as well as valuable intermediates used in the process.
本文描述了一种改进的制备2,5-二酮-4,4-二苯基-咪唑啉-1-基甲酯磷酸双酯的方法,其中一种碱金属磷酸盐与3-(氯甲基)-或3-(溴甲基)-5,5-二苯基-2,4-咪唑啉二酮反应,从而得到所需的产物,以及在过程中使用的有价值的中间体。