AbstractWe describe a new method for the intermolecular amination of the α‐CH bonds of ethers. A hypervalent iodine reagent was used as oxidant to enable the amination of cyclic and acyclic alkyl ethers with a wide range of amides, imides, and amines. The amination occurred at room temperature and without a transition metal catalyst. The method could be used to synthesize the anti‐cancer prodrug Tegafur and its analogues.magnified image
Halogen-Bond-Promoted α-C−H Amination of Ethers for the Synthesis of Hemiaminal Ethers
作者:Zhangjin Pan、Zhenwei Fan、Beili Lu、Jiajia Cheng
DOI:10.1002/adsc.201800006
日期:2018.5.2
A simple halogen‐bond‐promoted α‐C−H amination of ether/thioether with a variety of N−H compounds has been accomplished. In the presence of low‐cost and readily available perfluorobutyl iodide, a diverse range of hemiaminal ether derivatives, including the valuable hydrazone hemiaminal ethers, were quickly assembled under thermal or visible‐light irradiation conditions. Mechanistic studies suggest