Synthesis of furanoid terpenes via an efficient palladium-catalyzed cyclization of 4,6-dienols
                                
                                    
                                        作者:Pher G. Andersson、Jan E. Baeckvall                                    
                                    
                                        DOI:10.1021/jo00018a027
                                    
                                    
                                        日期:1991.8
                                    
                                    The total syntheses of marmelo oxides A and B and a terpene alcohol found in peppermint oil are described.  The key steps in these syntheses are the regioselective palladium-catalyzed allylic substitution of 4 and 11 to 6a and 12, respectively, and the regioselective palladium-catalyzed cyclization of 8 and 14 to 9a, 9b, and 15, respectively.  The relative stereochemistry of marmelo oxides A and B was established by NOE measurements.