Palladium-catalyzed selective N-(hetero)arylation or N,N′-di(hetero)arylation of 1-aminoindoles
作者:Samir Messaoudi、Jean-Daniel Brion、Mouâd Alami
DOI:10.1016/j.tetlet.2011.03.068
日期:2011.5
The selective synthesis of N-(hetero)aryl-1-aminoindoles 3 from the corresponding N-aminoindoles and (hetero)aryl halides using a catalyst combination of Pd2(dba)3 associated to Josiphos is described. By switching to Xantphos as the ligand, the alternate catalytic system allows the coupling to proceed efficiently for the preparation of symmetrical and unsymmetrical N,N′-diaryl-1-aminoindole derivatives
描述了使用与Josiphos缔合的Pd 2(dba)3的催化剂组合物,从相应的N-氨基吲哚和(杂)芳基卤化物选择性合成N-(杂)芳基-1-氨基吲哚3。通过转换为Xantphos作为配体,交替催化体系可使偶联有效进行,从而以高收率制备对称和不对称的N,N'-二芳基-1-氨基吲哚衍生物。