Asymmetric Synthesis of β-Alkynyl Aldehydes by Rhodium-Catalyzed Conjugate Alkynylation
作者:Takahiro Nishimura、Takahiro Sawano、Tamio Hayashi
DOI:10.1002/anie.200904486
日期:2009.10.12
To the point: The rhodium‐catalyzed asymmetric conjugate alkynylation of α,β‐unsaturated aldehydes with triisopropylsilyl acetylene proceeded efficiently in methanol to give the β‐alkynyl aldehydes in high yields with high enantioselectivity (see Scheme).
关键点是:在甲醇中,铑催化的α,β-不饱和醛与三异丙基甲硅烷基乙炔的不对称共轭炔基化反应以高收率和高对映选择性(见方案)得到β-炔基醛。