Gold(I)-Catalyzed 1,3-<i>O</i>-Transposition Reactions: Ynesulfonamides to Ynamides
作者:De-Yao Li、Yin Wei、Min Shi
DOI:10.1002/ejoc.201500604
日期:2015.7
The gold-catalyzed 1,3-O-transposition reaction of ynesulfonamides provides a practical synthetic protocol for the synthesis of ynamides under mild conditions. This is the first 1,3-O-transposition example of ynesulfonamides in which a heteroatom is attached to the alkynyl terminal. A plausible mechanism is been proposed on the basis of O-18-labeling and control experiments as well as DFT calculation
炔磺酰胺的金催化 1,3-O-转座反应为在温和条件下合成炔酰胺提供了实用的合成方案。这是炔磺酰胺的第一个 1,3-O-转座实例,其中杂原子连接到炔基末端。基于 O-18 标记和控制实验以及 DFT 计算,提出了一种合理的机制。通过简单的处理,获得的炔酰胺可以很容易地转化为有用的产品。