summary fungicidal 3- {phenyl [(heterocyclylmethoxy) imino] methyl} -oxadiazolone derivatives. the present invention provides 4-substituted {3- {phenyl [(heterocyclylmethoxy) imino] methyl} -1,2,4-oxadiazole-5 (4h) -one derivatives of formula (i) (i) wherein a, x1 to x3, y1 to y5 represent various substituents. 1/1resumo derivados de 3-{fenil[(heterociclilmetóxi)imino]metil}-oxadiazolona fungicida. a presente invenção fornece derivados de 4-derivados substituídos-3-{fenil[(heterociclilmetóxi)imino]metil}-1,2,4-oxadiazol-5(4h)-ona da fórmula (i) (i) em que a, x1 a x3, y1 a y5 representam vários substituintes. 1/1
