Sulfoxides in Julia−Lythgoe Olefination:  Efficient and Stereoselective Preparation of Di-, Tri-, and Tetrasubstituted Olefins
                                
                                    
                                        作者:Jirí Pospíšil、Tomáš Pospíšil、István E. Markó                                    
                                    
                                        DOI:10.1021/ol050649e
                                    
                                    
                                        日期:2005.6.1
                                    
                                    A novel modification of the classical Julia-Lythgoe olefination, using sulfoxides instead of sulfones, affords, after in situ benzoylation and SMl(2)/HMPA- or DMPU-mediated reductive elimination, 1,2-di-, tri-, and tetrasubstituted olefins in moderate to excellent yields and E/Z selectivity. The conditions are mild, and the procedure is broadly applicable.