2-imidazole benzoyl arylamine active compound for preventing and treating wheat take-all and wheat stem rot

The invention discloses a 2-imidazole benzoyl arylamine active compound for preventing and treating wheat take-all and wheat stem rot, which is characterized in that the 2-imidazole benzoyl arylamine active compound has a structure as shown in formula I: R1 and R2 are-H,-F,-Cl,-Br,-I,-CN,-CF3,-CHO,-C1-C4 alkyl or-C1-C4 halogenated alkyl or-O-R3, and R1 and R2 are not H at the same time; r < 3 > is alkyl of-C < 1 > to C < 4 > or halogenated alkyl or aryl of-C < 1 > to C < 4 >; the compound I has excellent inhibitory activity on wheat take-all bacteria and fusarium graminearum and fusarium pseudograminearum which can cause wheat stem rot, and can be applied to prevention and treatment of wheat take-all and wheat stem rot at the same time. The compound I is few in synthetic reaction steps, simple, smooth and safe in process, easy to purify and suitable for large-scale synthesis and development. 本发明公开了一种用于小麦全蚀病和小麦茎基腐病防治的2-咪唑苯甲酰芳胺类活性化合物，其特征在于，具有式I所示结构：所述R1、R2为-H，-F，-Cl，-Br，-I，-CN，-CF3，-CHO，-C1-C4的烷基或-C1-C4的卤代烷基或-O