Thiophenylamide compound as well as preparation method and application thereof

The invention discloses a thiophenyl amide compound and a preparation method and application thereof, the thiophenyl amide compound has a structural formula as shown in formula I: # imgabs0 #, in which R1 is selected from benzyl, benzyl substituted by halogen or C1-6 halogenated alkyl, naphthyl methyl and C1-6 alkyl; r2 is selected from alkoxy of C1-6, phenyl, phenyl substituted by alkoxy of C1-6, halogen and nitro. The excitation and emission spectrum of the thiophenamide compound is in a visible region, the thiophenamide compound has excellent selectivity and sensitivity to Cd < 2 + >, the thiophenamide compound is high in chemical stability and relatively good in water solubility, can be used for detecting Cd < 2 + > in a water environment system, and can be applied to detection of Cd < 2 + > in a water environment system. The method can be effectively applied to compounds, high-sensitivity sensors or cadmium ion detection instruments. 本发明公开了一种硫代苯基酰胺类化合物及其制备方法与应用，具有式I所示的结构式：#imgabs0#其中，R1选自苄基、被卤素或C1～6的卤代烷基