4,5-Dichloro-1,2,3-dithiazolium chloride is an useful organosulfur compound. It is the chloride salt of the 4,5-dichloro-1,2,3-dithiazolium cation. It is a green solid that is poorly soluble in organic solvents. Most primary arylamines react readily with 4,5-dichloro-1,2,3-dithiazolium chloride to give, after treatment with tertiary amine base (2 equiv.), the corresponding N-aryl-4-chloro-5H-1,2,3-dithiazolimines in good to excellent yields. This compound is commonly used to synthesize monocyclic 1,2,3-dithiazoles which act as fungicides, antibacterials, antivirals or anticancer agents[1-2].
