名称:
                                Stereocontrolled entry to 2,5-disubstituted tetrahydrofurans from hex-2-enono-δ-lactones under mild conditions
                             
                            
                                摘要:
                                A stereospecific route to highly functionalized 2,5-disubstituted tetrahydrofuran derivatives from readily available 6-O-silylated-hex-2-enono-delta-lactones is reported. The protocol involves an efficient Michael type O-heterocyclization reaction followed by selective ring openig of the lactone moiety.
                             
                                                            
                                    DOI:
                                    10.1016/s0040-4039(00)61202-9