Generation of magnesium alkylidene carbenoids from 1-halovinyl sulfoxides with grignard reagent-their property and some synthetic uses
                                
                                    
                                        作者:Tsuyoshi Satoh、Koji Takano、Hideaki Someya、Kenji Matsuda                                    
                                    
                                        DOI:10.1016/0040-4039(95)01435-k
                                    
                                    
                                        日期:1995.9
                                    
                                    The first example of magnesium alkylidene carbenoids is described. 1-Halovinyl sulfoxides 3 (X=F, Cl, Br) were synthesized from ketones and aryl halomethyl sulfoxides in three steps in moderate to good overall yields. Ligand exchange reaction of the sulfoxides of 3 with ethylmagnesium halide in THF at low temperature afforded a magnesium alkylidene carbenoid, which reacted with several electrophiles to give new alkylidene compounds.