Heterocyclic-substituted anilide derivatives, a process for their preparation, herbicidal compositions containing them and a method of controlling undesired plant growth using them
申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0003619A2
公开(公告)日:1979-08-22
Novel compounds are provided of the general formula
wherein RI represents a hydrogen atom, an optionally substituted cycloalkyl group having 3 to 5 ring carbon atoms and a total of 3 to 6 carbon atoms, or an alkyl group having 1 to 4 carbon atoms or an alkenyl group having 2 or 3 carbon atoms which groups may be unsubstituted or substituted by one or more fluorine, chlorine and/or bromine atoms; R2 represents a fluorine, chlorine or bromine atom, a trifluoromethyl, nitro or cyano group, or an alkyl, alkoxy or alkylthio group having from 1 to 6 carbon atoms; and A represents various optionally-substituted 5-membered heterocycles containing up to 3 nitrogen atoms and also in some cases an oxygen atom. These compounds have herbicidal activity.
New herbicidally active compounds have the formula ##STR1## wherein R.sup.1 is H, alkyl, alkenyl, cycloalkyl, R.sup.2 is CF.sub.3, NO.sub.2, CN, halogen, alkyl, alkoxy or alkyl, and --X--Y--Z-- is ##STR2## in which R.sup.3 is H, or alkyl, R.sup.4 is H, alkyl or cycloalkyl, R.sup.5 is H or alkyl or when --Y--Z-- contains two vicinal R.sup.4 groups then these R.sup.4 groups taken together with the ring carbon atoms to which they are attached form a saturated or unsaturated hydrocarbyl ring containing 5 or 6 carbon atoms.