Herbicidal 4-benzoylisoxazole derivatives

摘要: 4-Benzoylisoxazole derivatives of formula (I): ##STR1## wherein: R represents hydrogen or --CO2 R4 ; R1 alkyl, haloalkyl optionally substituted cycloalkyl; R2 halogen, alkyl by --OR5, a group selected from nitro, cyano, R4, --S(O)p R6, --O(CH2)r OR5 and --OR5 R3 phenyl; X oxygen --S(O)--q n zero an integer one to four; R5 independently represent haloalkyl; R6 R7 p 0, 1 2; q r 1, 2 3; the herbicidal properties these their application crop protection are described.