Nickel-Catalyzed Synthesis of 1,3,5-Trisubstituted Hydantoins from Acrylates and Isocyanates
                                
                                    
                                        作者:Tomoya Miura、Yusuke Mikano、Masahiro Murakami                                    
                                    
                                        DOI:10.1021/ol200957y
                                    
                                    
                                        日期:2011.7.15
                                    
                                    One molecule of acrylate reacts with two molecules of isocyanate in the presence of a nickel(0)/SIPr catalyst to give a 1,3,5-trisubstituted hydantoin. Two processes operate in sequence, the first, regioselective formation of N-substituted fumaramate from acrylate and isocyanate and, the second, ring closure of the fumaramate with incorporation of another molecule of isocyanate.