Nickel-Catalyzed Borylative Ring Opening of Vinyl Epoxides and Aziridines

A mild ring opening of vinyl epoxides and aziridines with B(2)Pin(2) catalyzed by Ni(O)-Binap affords new functionalized allylic boron derivatives which undergo sequential transformations. The uncatalyzed allylation of aldehydes allows obtaining challenging bishomoallylic alicyclic 1,3-diols and 1,3-amino alcohols with remarkably high stereoselectivities. Valuable trans-bisallylic 1,4-amino alcohols can be obtained by a simple oxidation.