Efficient epimerization of pyrene and other aromatic C-nucleosides with trifluoroacetic acid in dichloromethane
                                
                                    
                                        作者:Yu Lin Jiang、James T Stivers                                    
                                    
                                        DOI:10.1016/s0040-4039(02)02481-4
                                    
                                    
                                        日期:2003.1
                                    
                                    Trifluoroacetic acid has been found to be an efficient and non-oxidative catalyst for the epimerization of pyrene and other C-nucleosides in dichloromethane at ambient temperature. Aspects of the epimerization mechanism are also elucidated. (C) 2002 Elsevier Science Ltd. All rights reserved.