| 摘要 |
PURPOSE:To obtain a herbicide composition for paddy field capable of surely controlling principal weeds in the paddy field for a long period of time with a lower amount of agent and a time of treatment containing a new specific pyrrolidinone derivative and a specific chloroacetamide derivative as active ingredients. CONSTITUTION:The aimed herbicide composition for paddy field having above- mentioned effect contains (A) a new substance expressed by formula I (R is H, F or Cl; X is H, F, Cl, Br, CF3, CH3, CN or NO2; n is 1 or 2 and X may be different for n=2) and (B) at least a species of 2-chloro-2'.6'-diethyl- N-(butoxymethyl)-acetanilide, 2-chloro-2'.6'-diethyl-N-(n-propoxyethyl)-acetanilide or 2-chloro-2'.6'-dimethyl-N-(3-methoxy-2-thienyl)methyl acetanilide as active ingredients. Besides, the new substance expressed by formula I is readily produced by reducing cyclization reaction of a compound expressed by formula II (Y is halogen). |
