作者:Wanyi Liang、Feng Xie、Zhihai Yang、Zheng Zeng、Chuanjiang Xia、Yibiao Li、Zhongzhi Zhu、Xiuwen Chen
DOI:10.1021/acs.orglett.0c02924
日期:2020.11.6
We herein describe a practical direct amination of phenols through a palladium-catalyzed hydrogen-transfer-mediated activation method to synthesize the secondary and tertiary amines. In this conversion, environmentally friendly water and inexpensive ammonium formate were used as solvent and reductant, respectively. A range of amines, including aliphatic amines, aniline, secondary amines, and diamines
我们在本文中描述了通过钯催化的氢转移介导的活化方法对苯酚进行的实际直接胺化反应,以合成仲胺和叔胺。在这种转化中,分别将环保型水和廉价的甲酸铵用作溶剂和还原剂。多种胺,包括脂族胺,苯胺,仲胺和二胺,可以通过这种方法有效地偶联,以实现酚的单/双胺化和环化。这项研究不仅为合成仲和叔萘胺提供了绿色和温和的策略,而且扩大了有机化学中氯喹的合成。