| 摘要 |
<p>Herbicidal compsns. contg. cpds. of formulae (I), (II) and (III) are new: In the formulae, R is CH3, A is H, alkali metal, ammonium, amine or alkanolamine; or R is sec. or tert. butyl and A is as above, or it is -COCH3; X is CH3 or Cl; R1 is CH3 or H; n = 0-2; A1 is H, alkyl, alkoxy ethyl or other ester-forming gp. alkali metal, alkaline earth metal, ammonium, Fe, Cu, Mn, Zn, amine, alkanolamine, alkyl alkylene diamine in which the alkyl gps. have 8-20; R2 is Cl or OCH3, A2 is H, alkali or alkaline earth metal, amine, alkanolamine, alkyl alkylene diamine with the alkyl gps. having 8-20C, or alkyl, alkylene or alkanoyl ester gps. Used in the treatment of dicolyledenous weeds in cereal crops. (I), (II) and (III) form a synergistic mixt.</p> |
