<scp>Palladium‐Catalyzed</scp>
Tandem Cyclization Strategy for the Assembly of
<scp>3‐Halo</scp>
‐1,2,5‐triarylpyrroles from
<scp>
<i>N</i>
‐Alkylanilines
</scp>
and Haloalkynes
作者:Songjia Fang、Huanfeng Jiang、Wanqing Wu
DOI:10.1002/cjoc.202200422
日期:2023.1.15
This report discloses a distinctive palladium-catalyzed sequential tandem cyclization reaction of two molecular haloalkynes and one molecular N-alkylanilines, leading to the efficient assembly of various 3-halo-1,2,5-triarylpyrrole derivatives. Two carbon-carbon triple bonds and one carbon-halogen bond in two molecular haloalkynes are transformed conveniently in one single step, which may involve the
该报告公开了一种独特的钯催化的两个分子卤代炔烃和一个分子N -烷基苯胺的顺序串联环化反应,导致各种 3-卤代-1,2,5-三芳基吡咯衍生物的有效组装。两个分子卤代炔烃中的两个碳碳三键和一个碳卤键可以一步方便地转化,这可能涉及卤代炔烃的氨基炔基化和新形成的烯炔中间体的环化。卤代吡咯产品的高化学选择性和区域选择性、良好的官能团耐受性和后期修饰进一步说明了该策略的合成价值。