Nickel-Catalyzed Cycloaddition of<i>o</i>-Arylcarboxybenzonitriles and Alkynes via Cleavage of Two Carbon–Carbon σ Bonds
作者:Kenichiro Nakai、Takuya Kurahashi、Seijiro Matsubara
DOI:10.1021/ja203829j
日期:2011.7.27
An intermolecular cycloaddition reaction has been developed, where o-arylcarboxybenzonitriles react with alkynes to afford coumarins in the presence of Ni(0)/P(CH(2)Ph)(3)/MAD as a catalyst. The reaction process displays an unusual mechanistic feature the cleavage of two independent C-CN and C-CO bonds.