Superelectrophilic Activation in Superacid HF/SbF<sub>5</sub> and Synthesis of Benzofused Sultams
                                
                                    
                                        作者:Fei Liu、Agnès Martin-Mingot、Marie-Paule Jouannetaud、Fabien Zunino、Sébastien Thibaudeau                                    
                                    
                                        DOI:10.1021/ol9029287
                                    
                                    
                                        日期:2010.2.19
                                    
                                    The synthesis of benzofused sultams and/or fluorinated sulfonamides, starting from N-allylic sulfonamides, was performed in superacid HF/SbF5, through superelectrophilic activation. A dramatic effect of superacid composition on the selectivity of the reaction was shown and applied to the synthesis of cyclic 4-aminobenzenesulfonamides.