The first demonstration of the hydrogenation of sulfoxidesunder atmospheric H2 pressure is reported. The highly efficient reaction is facilitated by a heterogeneous Ru nanoparticle catalyst. The mild reaction conditions enable the selective hydrogenation of a wide range of functionalized sulfoxides to the corresponding sulfides. The high redox ability of RuOx nanoparticles plays a key role in the
Optimization of Asymmetric Oxidation of Sulfides with the Fe(salan) Complex in Water and the Expanded Scope of its Application
作者:Tsutomu Katsuki、Hiromichi Egami
DOI:10.1055/s-2008-1078427
日期:2008.6
The scope of asymmetricoxidation of sulfides using Fe(salan) complex as a catalyst and aqueous hydrogen peroxide as an oxidant in water was broadened by optimizing the reaction conditions with respect to reaction temperature, catalyst loading, and amount of water solvent. The oxidation proceeded with high enantioselectivity under the optimized conditions. The undesired over-oxidation of the resultant