Direct and carbonylative vinylation of steroidal triflates in the presence of homogeneous palladium catalysts
                                
                                    
                                        作者:Rita Skoda-Földes、Lászlo Kollár、Fabio Marinelli、Antonio Arcadi                                    
                                    
                                        DOI:10.1016/0039-128x(94)90100-7
                                    
                                    
                                        日期:1994.12
                                    
                                    The palladium-catalyzed vinylation of several steroid 2-enyl- and 3,5-dienyl-3 triflates and estrone-3-triflate was systematically examined using vinyltributylstannane as a vinylating agent. In carbon monoxide atmosphere the insertion of a CO molecule took place and unsaturated ketones were obtained. In this way new steroid derivatives containing unsaturated side chain were produced which can sei ve as starting material for further functionalization of the steroid skeleton.