Synthesis, Structure, and Spectroscopic Properties of Isotianilas a Bactericide

Isotianil [N-(2-cyanophenyl)-3,4-dichloro-1,2-thiazole-5-carboxamide] has been synthesized in a good yield with high purity by reaction of the key intermediate product, N-(2-carbamoylphenyl)-3,4-dichloro-1,2-thiazole-5-carboxamide, with thionyl chloride in N,N-dimethylformamide at 60°C. The structure of isotianil was studied by X-ray analysis. It crystallized in triclinic space group P1 with a = 11.459(3), b = 12.632(3), c = 22.528(5) A, α = 78.897(3), β = 81.730(3), γ = 71.493(3)°, Z = 10.