Enantioselective synthesis of 4-substituted tetrahydroisoquinolines via palladium-catalyzed intramolecular Friedel–Crafts type allylic alkylation of phenols
作者:Zheng-Le Zhao、Qing-Long Xu、Qing Gu、Xin-Yan Wu、Shu-Li You
DOI:10.1039/c4ob02574a
日期:——
Palladium-catalyzed asymmetric intramolecular Friedel–Crafts type allylicalkylationreaction of phenols was developed under mild conditions. In the presence of Pd2(dba)3 with (1R,2R)-DACH-phenyl Trost ligand (L2) in toluene at 50 °C, the reaction provides various C4 substituted tetrahydroisoquinolines with moderate to excellent yields, regioselectivity and enantioselectivity.
Enantioselective Synthesis of Tetrahydroisoquinolines via Iridium-Catalyzed Intramolecular Friedel–Crafts-Type Allylic Alkylation of Phenols
作者:Qing-Long Xu、Li-Xin Dai、Shu-Li You
DOI:10.1021/ol3008793
日期:2012.5.18
An efficient iridium-catalyzed intramolecular Friedel–Crafts-type allylicalkylation reaction of phenols was developed, affording tetrahydroisoquinolines with moderate to excellent yields, enantioselectivity, and good regioselectivity.