Gold(I)-Catalyzed Intramolecular [4+3]-Cycloaddition Reactions with Furan Propargyl Esters as the Substrates: Carbenoid vs. Stabilized Allyl Cation
作者:Benjamin Gung、Ryan Conyers、Josh Wonser
DOI:10.1055/s-0033-1338946
日期:——
The tricyclic ring system with an oxabicyclo[3.2.1]octadiene and a fused six-membered ring was produced efficiently using the readily available propargyl ester furan substrate in the presence of a Au(I) complex. The reaction involves a tandem 3,3-rearrangement of the propargyl ester followed by an intramolecular [4+3]-cycloaddition reaction. Both the primary ligand of the gold complex (N-heterocyclic
在 Au(I) 配合物的存在下,使用容易获得的炔丙酯呋喃底物有效地生产了具有氧杂双环 [3.2.1] 辛二烯和稠合六元环的三环系统。该反应包括炔丙酯的串联 3,3-重排,然后是分子内 [4+3]-环加成反应。金配合物的主要配体 (N-杂环卡宾; NHC) 和中性动态配体 (PhCN) 对反应的成功都很重要。