This invention relates to novel compounds of formula [I], a process for their production, and their use as a herbicide. ##STR1## wherein A represents the bond ##STR2## in which X is a hydrogen atom, a chlorine atom, a nitro group or a trifluoromethyl group; B represents a hydrogen atom, a methyl group or a methoxy group; and Ar represents one member selected from the group consisting of ##STR3## in which R.sup.1 to R.sup.38, are as defined hereinafter.
这项发明涉及公式[I]的新化合物,其生产过程以及它们作为
除草剂的用途。其中A代表键##STR2##其中X是氢原子、
氯原子、硝基团或三
氟甲基基团;B代表氢原子、甲基基团或甲氧基基团;Ar代表从##STR3##中选择的一个成员,其中R.sup.1到R.sup.38如下所定义。