Abstract
Vinylstannanes are useful intermediates in palladium-mediated couplings. The synthesis of vinylstannanes with a defined regio- and stereochemistry is still challenging since many methods are influenced by steric factors as well as electronic factors which direct the stannane to either the β-carbon (sterics) or the α-carbon (electronics). In this paper, a method is presented which directs the stannane almost exclusively to the α-carbon presumably by a Z-directing effect of the adjacent double bond.
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