Abstract In order to find new CAA fungicides, twenty four new threoninamide carbamate derivatives were synthesized. The reaction was optimized. Their structures were confirmed by 1H NMR, 13C NMR, single crystal and HRFTMS. Fungicidal activities were evaluated against P. capsici and P. cubensi. All of them exhibited excellent activity against Phytophthora capsici in vitro with EC50 values of 0.53 to