2-methyl-4-(5-trifluoromethyl-1,3,4-thiadiazol-2-yl)semicarbazide 、
聚合甲醛 、
氢氧化钾 在
ethyl acetate heptane 、
2-Methyl-4-(5-trifluormethyl-1,3,4-thiadiazol-2-yl)-1,2,4-triazolidin-3-on 作用下,
以
甲醇 为溶剂,
以to yield the desired product 2-methyl-4-(5-trifluoromethyl-1,3,4-thiadiazol-2-yl)-1,2,4-triazolidin-3-one having a melting point of 187° to 188°C.的产率得到2-Methyl-4-(5-trifluormethyl-1,3,4-thiadiazol-2-yl)-1,2,4-triazolidin-3-on