N-phenyl-maleimides and N-phenyl-succinimides and their use in a herbicidal and/or plant growth regulating action

摘要

Novel derivatives of N-phenylmaleic acid imide and N- phenylsuccinimide have good pre- and post-emergence selective herbicidal properties and they influence plant growth. The compounds correspond to the formula I in whichPP|: represents a single or double bond, PPR.sup.1 represents hydrogen or fluorine, PPR. sup.2 represents halogen,PPY represents C.sub.1 -C.sub.8 - alkyl,PPZ represents hydrogen or C.sub.1 -C.sub.8 -alkyl, andPPA represents hydrogen or a group ##STR1## wherein R. sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 represent customary organic radicals and X represents oxygen, sulphur, SO, SO.sub.2, NH, alkylimino or alkenylimino.