Bidentate Directing-Enabled, Traceless Heterocycle Synthesis: Cobalt-Catalyzed Access to Isoquinolines
作者:Shuguang Zhou、Mingyang Wang、Lili Wang、Kehao Chen、Jinhu Wang、Chao Song、Jin Zhu
DOI:10.1021/acs.orglett.6b02870
日期:2016.11.4
Traceless heterocycle synthesis based on transition-metal-catalyzed C-H functionalization is synthetically appealing but has been realized only in monodentate directing systems. Bidentate directing systems allow for the achievement of high catalytic reactivity without the need for a high-cost privileged ligand. The first bidentate directing-enabled, traceless heterocycle synthesis is demonstrated in the
基于过渡金属催化的CH官能化的无痕杂环合成在合成上具有吸引力,但仅在单齿导向系统中才实现。双向导向系统可实现高催化反应活性,而无需昂贵的特权配体。首次双齿导向的,无痕的杂环合成已在钴催化的异喹啉的合成中得到证实,该合成是通过2-肼基吡啶吡啶与炔烃进行的CH偶联/环化。通过普遍存在的酮基进行便捷的导向基团安装,可以对复杂的分子进行合成修饰。