Palladium-Catalyzed Oxidative Cycloisomerization of 2-Cinnamyl-1,3-Dicarbonyls: Synthesis of Functionalized 2-Benzyl Furans
作者:Rajender Nallagonda、Reddy Rajasekhar Reddy、Prasanta Ghorai
DOI:10.1002/chem.201502781
日期:2015.10.12
A new palladium‐catalyzed intramolecular oxidative cycloisomerization of readily available starting materials, 2‐cinnamyl‐1,3‐dicarbonyls, has been demonstrated for the creation of structurally diverse 2‐benzyl furans. The cycloisomerization occurs by a regioselective 5‐exo‐trig pathway. The reaction shows a broad substrate scope with good to excellent yields. Furthermore, a one‐pot procedure has been
新型钯催化的分子内氧化环化异构反应可轻松获得,即2-肉桂基-1,3-二羰基原料,可用于形成结构多样的2-苄基呋喃。环异构化是通过区域选择性5 exo- trig途径进行的。该反应显示出广泛的底物范围,具有良好至优异的产率。此外,通过使用现成的肉桂醇和1,3-二酮,可以执行一锅法。