Catalytic Asymmetric Oxidation of <i>N</i>-Sulfonyl Imines with Hydrogen Peroxide–Trichloroacetonitrile System
                                
                                    
                                        作者:Daisuke Uraguchi、Ryosuke Tsutsumi、Takashi Ooi                                    
                                    
                                        DOI:10.1021/ja403491j
                                    
                                    
                                        日期:2013.6.5
                                    
                                    An efficient and highly enantioselective Payne-type oxidation of N-sulfonyl imines is developed. The reaction exhibits broad substrate generality and unique chemoselectivity based on the combined use of hydrogen peroxide and trichloroacetonitrile under the catalysis of P-spiro chiral triaminoiminophosphorane.