Intramolecular cyclization of ortho-alkynylanilines by Rh(I)-catalyzed hydroamination to yield benzo(dipyrroles)
                                
                                    
                                        作者:Guy K.B. Clentsmith、Leslie D. Field、Barbara A. Messerle、Adelle Shasha、Peter Turner                                    
                                    
                                        DOI:10.1016/j.tetlet.2009.01.060
                                    
                                    
                                        日期:2009.4
                                    
                                    The methylene-bridged Rh(1) dicarbonyl complex, [Rh(bim)(CO)(2) BPh4 (1) (bim = bis(N-methylimidazol-2-yl)methane), is an effective catalyst for the intramolecular hydroamination of selected ortho-alkynylanilines to give a range of benzo(dipyrroles). (C) 2009 Elsevier Ltd. All rights reserved.