Английская Википедия:Divinyl sulfide

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Divinyl sulfide is the organosulfur compound with the formula S(CH=CH2)2. A colorless liquid with a faint odor, it is found in some species of Allium.[1][2]

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.[3]

Divinylsulfide was first prepared in 1920 by the reaction of bis(2-chloroethyl)sulfide with sodium ethoxide:[3]

(ClCH2CH2)2S + 2 NaOEt → (CH2=CH)2S + 2 EtOH + 2 NaCl

Monovinyl sulfides

With the formula CH2=CHSR, a variety of monovinyl sulfides are known. They can arise by the dehydrohalogenation of -2-haloethyl phenyl sulfides.[4] One example is phenyl vinyl sulfide.[5][6] Alkyl ketones react with thiols in the presence of phosphorus pentoxide to give vinyl sulfides:[7]

Шаблон:Chem2

References

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