Compounds of the formula: ##STR1## wherein A is O or S, halo is chloro, bromo or fluoro; X' is --CH.sub.2 --, O or S; X is hydrogen or halo; R.sup.1 and R.sup.2 are the same or different radicals selected from hydrogen or lower alkyl; and Z can be a variety of substituents and agronomically acceptable salts, esters and amides as well as other heterocyclic benzenes are disclosed as selective herbicides.
本发明涉及一种选择性
除草剂,其
化学式为:##STR1##其中,A为O或S,halo为
氯、
溴或
氟;X'为--CH.sub.2 --,O或S;X为氢或卤素;R.sup.1和R.sup.2为氢或较低烷基中选择的相同或不同基团;Z可以是各种取代基和农业上可接受的盐、酯和酰胺,以及其他杂环苯。