A novel concept for regiochemical and stereochemical control in Lewis acid promoted [3 + 4] annulation reactions
                                
                                    
                                        作者:Gary A. Molander、Kimberly O. Cameron                                    
                                    
                                        DOI:10.1021/jo00008a008
                                    
                                    
                                        日期:1991.4
                                    
                                    Studies on the regioselective and steroselective formation of a variety of 2-carbalkoxy-8-oxabicyclo-[3.2.1]octan-3-ones by means of a Lewis acid promoted [3 + 4] annulation process leads to a novel concept for selectivity in Lewis acid promoted carbonyl addition reactions.