HCl-mediated cascade cyclocondensation of oxygenated arylacetic acids with arylaldehydes: one-pot synthesis of 1-arylisoquinolines
作者:Nai-Chen Hsueh、Shin-Mei Chen、Chun-Yi Lin、Meng-Yang Chang
DOI:10.1039/d0ob02431g
日期:——
In this paper, a concise, open-vessel synthesis of 1-arylisoquinolines is described via HCl-mediated intermolecular cyclocondensation of oxygenated arylacetic acids with arylaldehydes in the presence of NH2OH and alcoholic solvents under mild and one-pot reaction conditions. A plausible mechanism is proposed and discussed herein. In the overall reaction process, only water was generated as the byproduct
在本文中,通过温和的一锅反应条件下,在NH 2 OH和醇类溶剂存在下,通过HCl介导的芳基醛与芳基醛之间的氧化芳构酸的分子间环缩合,描述了1-芳基异喹啉的简明,开放式容器合成。本文提出并讨论了一种合理的机制。在整个反应过程中,仅产生水作为副产物。为了通过(4C + 1C + 1N)环化方便地进行转化,研究了各种环境友好的反应条件。该协议通过形成一个碳-碳(CC)键,两个碳-氮(C-N)键和一个碳-氧(C-O)键,提供了一种高效的闭环方法。