Palladium-Catalyzed α-Arylation of Silylenol Ethers in the Synthesis of Isoquinolines and Phenanthridines
作者:Gaurav Saini、Pravin Kumar、Gangam Srikanth Kumar、Arun Raj Kizhakkayil Mangadan、Manmohan Kapur
DOI:10.1021/acs.orglett.7b03776
日期:2018.1.19
A diverse array of isoquinolines and phenanthridines have been accessed by developing a two-step, one-pot method constituting regioselective palladium-catalyzed Kuwajima–Urabe α-arylation of silylenol ethers and acid-mediated deprotection, annulation, and aromatization. Structural diversity in the silylenol ethers leads to three different classes of isoquinolines and phenanthridines from which related
通过开发两步,一锅法,构成了区域选择性的钯催化的甲硅烷基醚的Kuwajima-Urabeα-芳基化和酸介导的脱保护,环化和芳构化,已经获得了各种各样的异喹啉和菲啶。甲硅烷基醚的结构多样性导致了三类不同的异喹啉和菲啶,可以从中衍生出相关的天然产物。还证明了通过快速组装天然产物三鸟苷可实现该方法的合成效用。