The application of ultrasonic radiation and polar aprotic solvent in the synthesis of dialkyl thiourea with NH_2C(=S)NH_2 and RBr was studied in this paper for the first time.

• 本文首次报道了超声波辐射和极性非质子溶剂在硫脲与溴代烷反应合成二烃基硫脲中的应用。