Double Ring-Closing Metathesis Reaction of Nitrogen-Containing Tetraenes: Efficient Construction of Bicyclic Alkaloid Skeletons and Synthetic Application to Four Stereoisomers of Lupinine and Their Derivatives
作者:Shengming Ma、Bukuo Ni
DOI:10.1002/chem.200305581
日期:2004.7.5
The double ring-closing metathesis reaction of nitrogen-containing tetraenes was studied. The selectivity of the fused/dumbbell-type products can be controlled by the electronic/steric effects of the substituents attached to the C[double bond]C bonds and the s-cis/s-trans conformational ratios of the substrates. This methodology has also been successfully applied to the enantioselective synthesis of
研究了含氮四烯的双环复分解反应。稠合/哑铃型产物的选择性可以通过连接于C [双键] C键的取代基的电子/立体效应和底物的s-顺式/ s-反式构象比来控制。该方法也已成功地应用于羽扇豆碱及其衍生物的四种立体异构体的对映选择性合成。