Herbicidal 1-Amino-3-(bicyclic heterocyclyl)-6-fluoroalkyluracils of the formula ##STR1## in which M is fluoroalkyl(C.sub.1-6); R.sup.1 is hydrogen or alkyl(C.sub.1-6); R.sup.2 is hydrogen or alkyl (C.sub.1-6); Y is hydrogen, fluorine, chlorine, or bromine; X is hydrogen, fluorine, chlorine, bromine, cyano, alkyl(C.sub.1-6), or fluoroalkyl(C.sub.1-6); and n is 0 or 1.
式子为##STR1##的
除草剂1-
氨基-3-(双环杂环基)-6-氟烷基尿
嘧啶,其中M为氟烷基(C.sub.1-6);R.sup.1为氢或烷基(C.sub.1-6);R.sup.2为氢或烷基(C.sub.1-6);Y为氢、
氟、
氯或
溴;X为氢、
氟、
氯、
溴、
氰基、烷基(C.sub.1-6)或氟烷基(C.sub.1-6);n为0或1。