Compounds of the formulae ##STR1## are disclosed wherein R is hydrogen, halogen, phenyl, phenyl-C.sub.1 to C.sub.4 alkylthio, C.sub.1 to C.sub.6 alkylthio, C.sub.5 to C.sub.7 cycloalkylthio, phenylthio or phenylsulfonyl; R.sub.1 is amino, C.sub.5 to C.sub.7 cycloalkylamino, C.sub.1 to C.sub.6 alkylamino, C.sub.1 to C.sub.4 -alkoxy-substituted-phenyl-(C.sub.1 to C.sub.4 -alkylamino), phenylamino, naphthylamino, furfurylamino, phenyl-(C.sub.1 to C.sub.4)-alkylamino, phenylamino-substituted by C.sub.1 to C.sub.4 alkoxy, halogen or C.sub.1 to C.sub.4 alkyl or phenylsulfonyl. R.sub.2 is hydrogen; and R.sub.3 is C.sub.1 to C.sub.6 alkyl, alkoxy or phenyl. The compounds have herbicidal properties.
本文揭示了
化学式为##STR1##的化合物,其中R为氢、卤素、苯基、苯基-C.sub.1至C.sub.4烷基
硫醚、C.sub.1至C.sub.6烷基
硫醚、C.sub.5至C.sub.7环烷基
硫醚、苯
硫醚或苯磺酰基;R.sub.1为
氨基、C.sub.5至C.sub.7环烷基
氨基、C.sub.1至C.sub.6烷基
氨基、C.sub.1至C.sub.4-烷氧基取代的苯基-(C.sub.1至C.sub.4-烷基
氨基)、
苯胺基、
萘胺基、
呋喃甲基
氨基、苯基-(C.sub.1至C.sub.4)-烷基
氨基、
苯胺基取代的C.sub.1至C.sub.4烷氧基、卤素或C.sub.1至C.sub.4烷基或苯磺酰基。R.sub.2为氢;R.sub.3为C.sub.1至C.sub.6烷基、烷氧基或苯基。这些化合物具有
除草剂特性。