作者:Adriano Bauer、Eszter Borsos、Nuno Maulide
DOI:10.1002/ejoc.202000363
日期:2020.7.15
The work presented herein describes the synthesis of a formerly inaccessible class of heterocyclic compounds. The reaction relies on α‐phthalimido‐amides, which are readily prepared from amino acids in 2 simple reactions steps. Under amide activation conditions in which classical keteniminium ions are not formed, the nitrile solvent is incorporated into the new fused 7‐membered ring system. Due to
本文介绍的工作描述了以前难以接近的一类杂环化合物的合成。该反应依赖于 α-邻苯二甲酰亚胺酰胺,它很容易通过 2 个简单的反应步骤从氨基酸制备。在没有形成经典酮亚胺离子的酰胺活化条件下,腈溶剂被结合到新的稠合 7 元环系统中。由于不存在酮亚胺中间体,α位的立体信息被完全保留。