CYCLOHEXENONE DERIVATIVES, THEIR PREPARATION AND THEIR USE FOR CONTROLLING UNDESIRABLE PLANT GROWTH

摘要

Cyclohexenone derivatives of the formula (I), where R1 is alkyl, alkenyl, alkynyl, haloalkyl or haloalkenyl, alkoxyalkyl, unubstituted or substituted cycloalkylmethyl, unsubstituted or substituted benzyl, or is a 5-membered heterocyclic ring which is bonded to the oxygen via a methylene unit, R2 is alkyl, R3 is hydrogen, alkylcarbonyl, alkenylcarbonyl, unsubstituted or substituted benzoyl, trialkylsilyl, alkyl- or arylsulfonyl, dialkylphosphono or -thiophosphono, or an organic or inorganic cation, R4 is unsubstituted or substituted alkyl, alkenyl or alkynyl, or unsubstituted or substituted cycloalkyl, and Y is hydrogen, methoxycarbonyl, cyano, alkyl or halogen, and herbicides containing these compounds.