4-IMINOOXAZOLIDIN-2-ONE DERIVATIVE, PROCESS FOR PRODUCING THE SAME, AND HERBICIDE CONTAINING THE SAME AS ACTIVE INGREDIENT

摘要

A 4-iminooxazolidin-2-one derivative represented by general formula (1) (wherein X<1> represents hydrogen or halogen; X<2> represents hydrogen, halogen or alkyloxy; and X<3> represents hydrogen, halogen, alkyloxy, cycloalkyloxy or alkynyloxy); a process for producing the above compound by the reaction of an aryl isocyanate represented by general formula (2) with methacrolein cyanohydrin in the presence of a base; a herbicide containing the above compound as the active ingredient; and a process for producing an oxazolidinedione derivative useful as a herbicide by hydrolyzing the above compound.