| abstract |
Described are compounds of formula (I), and their salts, in which R<1> to R<6>, W, Q, X, Y and Z are as defined in Formula (I) of claim 1 and which are suitable for use as herbicides and plant-growth regulators. The compounds (I) may be prepared by procedures analogous to prior art methods (see claim 5), some of the procedures involving novel intermediates of formula (II). |