Herbicidal aryloxybenzeneacetic acid derivatives.

摘要

<CHEM> X is O or S; n is 0 or 1; R is H, Cl, F, Br, CH3, OCH3 or OCH2CH3; R@ is C1-C3 alkyl, allyl or propargyl; R2 is X1R8 or OH; R3 is Cl, F, Br or CF3; R4 is H, Cl, F or Br; R5 is CF3; R6 is H or Cl; R7 is H, Cl, F, Br or CF3; R8 is an organic group of defined structure; X1 is O or S; and their agriculturally suitable salts, exhibit herbicidal activity, especially for the control of weeds in rice.