2-benzoylcyclohexane-1,3-dione derivatives as herbicides and intermediates

摘要

2-benzoylcyclohexane-1,3-dione derivatives of formula I: wherein XR 3 represents a nitrogen containing heterocycle (e.g. a diazole, triazole or tetrazole) attached directly or indirectly to the phenyl ring, z is 1 or 2 and R 1 is 2-cyclohexyl-1,3-dione or a derivative thereof; compositions containing them and their use as herbicides.