Asymmetric induction in silyl nitronate cycloadditions to Oppolzer's chiral sultam derivatives
                                
                                    
                                        作者:Byeang Hyean Kim、Ju Young Lee、Kimoon Kim、Dongmok Whang                                    
                                    
                                        DOI:10.1016/s0957-4166(00)82151-5
                                    
                                    
                                        日期:1991.1
                                    
                                    Silyl nitronate cycloadditions to Oppolzer's chiral sultam derivatives, followed by the elimination of the sily alcohols from the resulting N-silyloxyisoxazolidines, provide DELTA-2-isoxazolines in good stereoselectivity (ca. 89/11).  The favored transition state is suggested in the light of the X-ray crystal structure of a major cycloadduct.