A Copper-Catalyzed Tandem Synthesis of Indolo- and Pyrrolo[2,1-<i>a</i>]isoquinolines
作者:Akhilesh Kumar Verma、Tanay Kesharwani、Jaspal Singh、Vibha Tandon、Richard C. Larock
DOI:10.1002/anie.200804427
日期:2009.1.26
Isoquinoline ring the changes: A novel strategy for the title reaction involves ortho‐haloarylalkynes which undergo sequential intermolecular addition of N heterocycles onto alkynes and subsequent intramolecular ring closure by arylation. The process involves the use of hydroxymethyl benzotriazole as an efficient and inexpensive ligand for the CN and CC coupling reactions.
异喹啉环发生变化:标题反应的新策略涉及邻卤代芳基炔烃,后者依次在分子内将N杂环分子间加成到炔烃上,随后通过芳基化进行分子内闭环。该方法涉及使用羟甲基苯并三唑作为CN和CC偶联反应的有效和廉价的配体。