Aerobic Hydroxylation of <i>N</i>-Borylenamine: Triethylborane-Mediated Hydroxyalkylation of α,β-Unsaturated Oxime Ether
                                
                                    
                                        作者:Masafumi Ueda、Hideto Miyabe、Takahiro Kimura、Eiko Kondoh、Takeaki Naito、Okiko Miyata                                    
                                    
                                        DOI:10.1021/ol901912j
                                    
                                    
                                        日期:2009.10.15
                                    
                                    Intermolecular hydroxyalkylation of alpha,beta-unsaturated imines Involving Et3B-mediated regioselective alkyl radical addition and subsequent hydroxylation with molecular oxygen has been developed, In which N-borylenamine generated by trapping of the enaminyl radical with Et3B was a key intermediate in the proposed aerobic hydroxylation mechanism.