An Efficient Synthesis of Isoindolo[2,1-<i>a</i>]quinoline Derivatives via Imino Diels-Alder and Intramolecular Diels-Alder Reactions with Furan
作者:Vladimir Kouznetsov、Fedor Zubkov、Uriel Cruz、Eugenia Nikitina
DOI:10.1055/s-2007-965875
日期:2007.2
The straightforward synthesis of new isoindolo[2,1-a]quinoline derivatives from 2,4-disubstituted 1,2,3,4-tetrahydroquinolines bearing a furan fragment via the intramolecular Diels-Alder reaction is reported. The synthesis of key precursors was realized with excellent levels of diastereoselectivity either by Povarov reaction or by a multicomponent condensation approach.
报道了通过分子内 Diels-Alder 反应从带有呋喃片段的 2,4-二取代 1,2,3,4-四氢喹啉直接合成新的异吲哚[2,1-a]喹啉衍生物。通过波瓦罗夫反应或多组分缩合方法,以优异的非对映选择性水平实现了关键前体的合成。