The first example of a Pd-catalyzed intramolecular arylation involving the C-2 position of an imidazole ring is presented. Application of this reaction led to the formation of 5H-imidazo[2,1-a]isoindole in one step from N-benzyl-2-iodoimidazole. Microwave irradiation enhanced the rate of reaction allowing the synthesis of various imidazo[2,1-a]isoindole analogues.
首次报道了一种
钯催化下的
咪唑环C-2位点参与的分子内芳基化反应。应用此反应,可以一步从N-苄基-
2-碘咪唑合成5H-
咪唑并[2,1-a]异
吲哚。微波辐照加速了反应速率,使得多种
咪唑并[2,1-a]异
吲哚类似物的合成成为可能。