A Two-Step, Stereoselective Synthesis of Nine- and Ten-Membered Carbocycles from Phthalates
                                
                                    
                                        作者:Gustavo Prado、Alberte X. Veiga、Fernando Fernández-Nieto、M. Rita Paleo、F. Javier Sardina                                    
                                    
                                        DOI:10.1021/acs.orglett.5b00552
                                    
                                    
                                        日期:2015.5.1
                                    
                                    A two-step, stereoselective procedure for the synthesis of nine- and ten-membered carbocycles from readily available phthalates is described. A variety of dialkyl phthalates have been transformed into [6,n]-fused bicyclo systems (n = 5, 6, 7) by a dearomatization/cyclization process and then converted into cyclonona- and cyclodecadienes through a bond cleavage reaction, whereby both processes are promoted by alkaline metals in THF.