A new class of herbicidal compounds consisting of N,N-dialkyl-N'-(substituted-5-isothiazolyl)-N'-acylureas in which the 3-substitutent on the isothioazole moiety consists of alkyl, alkoxy, alkylthio, alkylsulfinyl, alkylsulfonyl, alkylamino, and dialkylamino, and the 4-substituent on the isothiazole moiety consists of cyano, alkoxycarbonyl, and nitro; and in which the nitrogen atom of the N,N-dialkylurea to which the isothiazolyl moiety is bonded, is also bonded to an acyl moiety, exhibits outstanding preemergence and postemergence herbicidal activity, controlling effectively the growth of a wide spectrum of grassy and broad-leaved plant species. The synthesis of members of this class is described in detail and the utility of representative compounds is exemplified.
一种新的除草化合物类,包括N,N-二烷基-N'-(取代-5-
异噻唑基)-N'-酰基
脲,其中
异噻唑基上的3-取代基包括烷基、烷氧基、烷
硫基、烷基亚砜基、烷基磺酰基、烷基
氨基和二烷基
氨基,
异噻唑基上的4-取代基包括
氰基、烷氧羰基和硝基;并且N,N-二烷基
脲的氮原子与
异噻唑基结合,同时也与酰基结合,表现出优异的前出和后出除草活性,有效控制广泛范围的草本和阔叶植物的生长。详细描述了该类成员的合成方法,并且举例说明了代表性化合物的用途。