Chemistry of thioacylsilanes - Part 11. Cyclic and open chain α-silyl vinyl sulfides as precursors of thioannulated cyclopentenones and thiofunctionalized enones
Cyclic and open chain α-silyl vinyl sulfides, obtained from thioacylsilanes, react with acid chlorides in the presence of Lewis acid to give thioannulated cyclopentenones and thiofunctionalized enones. The effect of the substituents at silicon on these reactions has been investigated.