| 摘要 |
PURPOSE: Arylpiperazine derivatives having herbicidal activity are provided. The compounds have piperazineamide skeleton. CONSTITUTION: Arylpiperazine derivatives represented by the formula(1) are provided, wherein X and Y are independently hydrogen, halogen, nitro, cyano, C1-C4 alkyl, C1-C4 alkoxy, C1-C4 alkoxy-carbonyl or D-C1-C4 alkyl-amino; m and n are independently an integer of 1 to 5. A process for preparing the arylpiperazine derivatives represented by the formula(1) comprises coupling carboxylic acid of the formula(2) with arylpiperazine of the formula(3), wherein the reaction is carried out in a solvent selected from tetrahydrofuran, diethylether, dichloromethane, chloroform, carbon tetrachloride and 1,2-dichloroethane.
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