Abstract Chiral secondary allylboronates are obtained in high enantioselectivities and 1, 6: 1, 4 ratios by the copper-catalyzed 1, 6-boration of electron-deficient dienes with bis (pinacolato) diboron (B 2 (pin) 2). The reactions proceed efficiently using catalyst loadings as low as 0.0049 mol%. The allylboronates may be oxidized to the allylic alcohols, and can be used in stereoselective aldehyde allylborations. This process was applied to a concise ...
