A Facile Synthesis of 1,1-Bis[methylthio]-1,3-alkadienes
- 1 January 1985
- journal article
- research article
- Published by Georg Thieme Verlag KG in Synthesis
- Vol. 1985 (10) , 958-959
- https://doi.org/10.1055/s-1985-31401
Abstract
1,1-Bis[methylthio]-1,3-butadiene and its 3-methyl derivative (which are vinylketene S,S-acetals) are prepared in 80-86% yields in a one-pot reaction by indirect lithiation of propene or isobutene, respectively, via the potassio derivative, reaction of the 2-alkenyllithium with carbon disulfide, and S,S′-dimethylation of the resultant lithium 3-butenedithiolate with methyl iodide.Keywords
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