Copper-Promoted Cyclization of α-Amino Nitrile-Tethered Enynes: Controllable Synthesis of 3-Azabicyclo[4.1.0]hepta-2,4-dienes and 4,5-Dihydro-3<i>H</i>-azepines
作者:Qiu-Qin Xu、Qi-Lan Hou、Wei Liu、Hai-Jing Wang、Wei-Wei Liao
DOI:10.1021/acs.orglett.6b01864
日期:2016.8.5
The first example of Cu-promoted cyclization of α-amino nitrile-tethered enynes incorporating an electron-deficient alkene component is described. A wide range of functionalized 3-azabicyclo[4.1.0]hepta-2,4-dienes and 4,5-dihydro-3H-azepines were prepared efficiently in a controllable manner. Moreover, the diverse cascade process enables efficient incorporation of tertiary amine moieties under mild
描述了结合有电子缺陷的烯烃组分的,Cu促进的α-氨基腈系联的烯炔的环化的第一个例子。以可控的方式有效地制备了各种官能化的3-氮杂双环[4.1.0]庚-2,4-二烯和4,5-二氢-3 H-氮杂。此外,多样的级联过程能够在温和的反应条件下有效地引入叔胺部分。在一系列对照实验的基础上,提出了一种可能的反应途径。