Synthesis of 2-substituted indoles by palladium-catalyzed heteroannulation with Pd–NaY zeolite catalysts
作者:Ki Bum Hong、Chul Wee Lee、Eul Kgun Yum
DOI:10.1016/j.tetlet.2003.11.075
日期:2004.1
Various 2-substituted indoles were prepared by heteroannulation of o-iodoanilines and terminal alkynes in a one-pot reaction with a Pd(II)–NaY zeolite catalyst. The product formation largely depended on the solvent, base, and reaction temperature. The recycled catalyst showed good reusability in the heteroannulation reaction.
通过邻位碘苯胺和末端炔烃与Pd(II)-NaY沸石催化剂的一锅法反应,制得各种2-取代的吲哚。产物的形成很大程度上取决于溶剂,碱和反应温度。再循环的催化剂在杂环化反应中显示出良好的可重复使用性。