Abstract
Transmetallation of (4R)-4-methyl-5-phenylmethoxypent-2-enyl(tributyl)stannane (7) using tin(IV) chloride gives an intermediate which reacts with aldehydes with excellent 1,5-asymmetric induction. For example, benzaldehyde yielded (1S,3Z,5R)-5-methyl-1-phenyl-6-phenylmethoxy-3-hexenol (8) in 86% yield.

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