作者:Jader da Silva Barbosa、Gil Valdo José da Silva、Mauricio Gomes Constantino                                    
                                    
                                        DOI:10.1016/j.tetlet.2015.06.061
                                    
                                    
                                        日期:2015.8
                                    
                                    This Letter describes the use of NbCl5 as the Lewis acid in Friedel-Crafts reactions, in which a bifunctional electrophile reacts inter- and intramolecularly with an aromatic ring to produce a number of indanones in a single step, maintaining mild conditions and good yields. (C) 2015 Elsevier Ltd. All rights reserved.