Divinyl sulfide
Divinyl sulfide is the organosulfur compound with the formula S2. It is a colorless liquid with a faint odor. It is found in the oil of some species of Allium.
It is notable as the product from hydrogen sulfide and acetylene, a combination that arises when acetylene is generated by hydrolysis of technical grade calcium carbide, which contains impurities of calcium sulfide.
Divinylsulfide was first prepared in 1920 by the reaction of sulfur mustard with sodium ethoxide:
A variety of monovinyl sulfides are known, often arising from the reactions of thiols and acetylenes.
