TETRAZOLINONES

摘要

Novel tetrazolinone derivatives of the formula (I) and intermediates of the formula (II) for production thereof represented by the following formulas <IMG> <IMG> (I) (II) wherein R1 represents alkyl substituted by halogen, R2 and R3 represent alkyl, alkenyl, alkynyl, cycloalkyl, phenyl or substituted phenyl, or R2 and R3 may optionally form a 5- or 6-membered heterocyclic ring together with the N-atom to which they attach, said heterocyclic ring being optionally substituted. The above tetrazolinone derivatives have an excellent activity as the effective component in herbicides.