Regioselective Mercury(I)/Palladium(II)-Catalyzed Single-Step Approach for the Synthesis of Imines and 2-Substituted Indoles
作者:Rsuini U. Gutiérrez、Mayra Hernández-Montes、Aarón Mendieta-Moctezuma、Francisco Delgado、Joaquín Tamariz
DOI:10.3390/molecules26134092
日期:——
An efficient synthesis of ketimines was achieved through a regioselective Hg(I)-catalyzed hydroamination of terminal acetylenes in the presence of anilines. The Pd(II)-catalyzed cyclization of these imines into the 2-substituted indoles was satisfactorily carried out by a C-H activation. In a single-step approach, a variety of 2-substituted indoles were also generated via a Hg(I)/Pd(II)-catalyzed,
在苯胺存在下,通过区域选择性 Hg(I) 催化的末端乙炔加氢胺化,实现了酮亚胺的有效合成。Pd(II) 催化的这些亚胺环化成 2-取代的吲哚通过 CH 活化令人满意地进行。在单步法中,还通过 Hg(I)/Pd(II) 催化的一锅两步法从苯胺和末端乙炔开始生成各种 2-取代吲哚。事实证明,芳基乙炔比烷基衍生物更有效。