| 摘要 |
<p>A compound of formula (I): wherein R1 is a substituent; R2 is selected from hydrogen and a substituent; R4 is selected from hydrogen, OH and halogen; R5 is selected from hydrogen and halogen, or R4 and R5 form an optionally substituted aryl/heteroaryl ring; Q is a 5- or 6-membered aryl/heteroaryl ring; X is a substituent; G is selected from hydrogen and C(O)R6 where R6 is a substituent; n is 0,1,2,3,4; Preferred compounds include those where R1=R2=Me, Q is substituted thienyl and R4=R5=Cl. Other preferred compounds include those where R1=R2=Me, Q is phenyl and R4 and R5 form a phenyl ring, which together with the pyrrole ring to which both phenyl rings are mutually condensed forms a carbazole ring system. Also, herbicidal compositions comprising such compounds and their use in controlling undesirable plant and in particular the use in controlling weeds, such as broad-leaved dicotyledonous weeds, in crops of useful plants.</p> |
