作者:Neus Mesquida、Sara López-Pérez、Immaculada Dinarès、Ermitas Alcalde
DOI:10.3762/bjoc.7.204
日期:——
The synthesis of multifunctional indenes with at least two different functional groups has not yet been extensively explored. Among the plausible synthetic routes to 3,5-disubstituted indenes bearing two different functional groups, such as the [3-(aminoethyl)inden-5-yl)]amines, a reasonable pathway involves the (5-nitro-3-indenyl)acetamides as key intermediates. Although several multistep synthetic
具有至少两个不同官能团的多功能茚的合成尚未得到广泛探索。在具有两个不同官能团的 3,5-二取代茚(例如 [3-(氨基乙基)茚-5-基)] 胺的合理合成路线中,合理的途径涉及(5-硝基-3-茚基)乙酰胺作为关键中间体。虽然可以应用几种多步合成方法来获得这些高级中间体,但我们在本文中描述了它们通过 5-硝基茚满-1-酮与 N,N-二取代乙酰胺的锂盐之间的羟醛型反应制备,然后立即用酸。这种经典的缩合过程虽然具有明显的直接性,但既不简单也不平凡,它允许有效地进入各种基于茚的分子模块,