This invention describes 2,4-diamino-5-iodopyrimidines II where R, R1, R2, and R3 are independently selected from hydrogen, alkyl, cycloalkyl, alkoxyalkyl, alkoxyalkoxyalkyl, and arylalkyl; or, R1 and R2, and R3 and R, each independently, when taken together with pentylene or 3-oxapentylene, form piperidine and morpholine ring systems respectively; and R4 is hydrogen or lower alkyl. These compounds are useful intermediates in the preparation of insecticides I where U is an optionally substituted alkenylene. ##STR1##
本发明描述了2,4-二
氨基-5-
碘嘧啶II,其中R、R1、R2和R3分别选自氢、烷基、环烷基、烷氧基烷基、烷氧基烷氧基烷基和芳基烷基;或者,当R1和R2,以及R3和R分别与
戊二烯基或3-氧代
戊二烯基一起取时,形成
哌啶和吗啉环系统;而R4为氢或较低的烷基。这些化合物是制备
杀虫剂I的有用中间体,其中U是可选取代的烯基。 ##STR1##