Enantioselective Vanadium-Catalyzed Oxidation of 1,3-Dithianes from Aldehydes and Ketones using β-Amino Alcohol Derived Schiff Base Ligands
作者:Yinuo Wu、Fei Mao、Fanchao Meng、Xingshu Li
DOI:10.1002/adsc.201000803
日期:2011.7
and ketones by β‐amino alcohol‐derived Schiffbase ligands with two stereogenic centers was investigated. Usingaqueoushydrogenperoxide as the oxidant and the Schiffbase 3b as a chiral ligand, a variety of 1,3‐dithianes derived from aldehydes were easily converted into the corresponding mono‐sulfoxides in good yields (81–88%) with excellent enantioselectivities (up to 99% ee). Additionally, 99% ee