Enhancing Ligand‐Free Fe‐Catalyzed Aminocarbonylation of Alkynes by ZrF
<sub>4</sub>
作者:Zijun Huang、Yanan Dong、Yudong Li、Mohamed Makha、Yuehui Li
DOI:10.1002/cctc.201900995
日期:2019.11.7
Zirconium fluoride was utilized to promote efficiently iron‐catalyzed aminocarbonylation between alkynes and amines without the use of extra ligands. In particular, this new system is applicable to a wide range of amine and alkyne substrates affording α,β‐unsaturated amides in good to excellent yields. Preliminary mechanistic studies reveal the activation model involving interactions of ZF4 with both