作者:Letian Wang、Matthew L. Maddess、Mark Lautens
DOI:10.1021/jo062107w
日期:2007.3.1
beta,gamma-Alkynyl aldehydes, generated in situ by treatment of alkynyloxiranes with a catalytic amount of Sc(OTf)(3) or BF3 center dot OEt2, are effectively trapped by a variety of allyl nucleophiles to afford homopropargylic homoallylic alcohols in good yield and selectivity. Such products are used as substrates for the synthesis of functionalized vinylcyclopentenols via enyne metathesis.