A Cyclopropanol-Based Strategy for Subunit Coupling: Total Synthesis of (+)-Spirolaxine Methyl Ether
作者:Katie A. Keaton、Andrew J. Phillips
DOI:10.1021/ol0710111
日期:2007.7.1
A strategy for ketone synthesis with cyclopropanols as intermediates and its application to (+)-spirolaxine methyl ether is described. The synthesis also features an application of Fu's alkyl-alkyl Suzuki coupling.
Supported Gold Nanoparticle-Catalyzed Hydration of Alkynes under Basic Conditions
作者:Shengzong Liang、Jacek Jasinski、Gerald B. Hammond、Bo Xu
DOI:10.1021/ol5033859
日期:2015.1.2
TiO2-supported nanosize gold particles catalyze the hydration of alkynes using morpholine as a basic cocatalyst. Unlike most homogeneous cationic gold catalysts, the TiO2-Au/morpholine system is weakly basic and is compatible with acid-sensitive functional groups (e.g., silyl ethers, ketals) or with a strongly coordinating group such as pyridine. Whats more, this gold catalyst can be recycled by simple filtration and works well in flow reactors.