Stereospecific Stille-coupling reaction of (Z)-1,2- bis(trimethylstannyl)ethenes with hypervalent iodonium salts

Article abstract of DOI:10.1016/S0040-4039(99)00575-4

The Stille coupling of (Z)-1,2-bis(trimethylstannyl)ethenes with hypervalent iodonium salts (1 equiv) proceeded stereospecifically in the presence of PdCl₂ (5 mol %) in DMF at room temperature to afford partially substituted (Z)-vinylstannanes under mild conditions. Alternatively, the use of 2 equivalents of hypervalent iodonium salts afforded tri-substituted alkenes.