| abstract |
New herbicidal compounds having the formula WHEREIN R is selected from the group consisting of alkyl having 1 to 3 carbon atoms and alkenyl having 2 to 3 carbon atoms; Z is selected from the group consisting of oxygen and sulfur; X is selected from the group consisting of halogen, lower alkyl, lower alkenyl, lower haloalkyl, lower alkoxy, nitro, amino, lower alkylamino, lower dialkylamino, lower acylamino, N-lower alkyl-Nlower acylamino, lower alkylthio, lower alkylsulfoxide, lower alkyl sulfone, cyano, thiocyano and |