Intermolecular Zirconium-Catalyzed Hydrophosphination of Alkenes and Dienes with Primary Phosphines
                                
                                    
                                        作者:Michael B. Ghebreab、Christine A. Bange、Rory Waterman                                    
                                    
                                        DOI:10.1021/ja503036z
                                    
                                    
                                        日期:2014.7.2
                                    
                                    Catalytic hydrophosphination of terminal alkenes and dienes with primary phosphines (RPH2; R = Cy, Ph) under mild conditions has been demonstrated using a zirconium complex, [kappa(5)-N,N,N,N,C-(Me3SiN-CH2CH2)(2)NCH2CH2NSiMe2CH]Zr (1). Exclusively anti-Markovnikov functionalized products were observed, and the catalysis is selective for either the secondary or tertiary phosphine (i.e., double hydrophosphination) products, depending on reaction conditions. The utility of the secondary phosphine products as substrates for further elaboration was demonstrated with a platinum-catalyzed asymmetric alkylation reaction.