Sequential N-acylamide methylenation–enamide ring-closing metathesis: a synthetic entry to 1,4-dihydroquinolines
                                
                                    
                                        作者:M.-Lluïsa Bennasar、Tomàs Roca、Manuel Monerris、Davinia García-Díaz                                    
                                    
                                        DOI:10.1016/j.tetlet.2005.04.028
                                    
                                    
                                        日期:2005.6
                                    
                                    A new synthetic entry to the 1,4-dihydroquinoline nucleus is reported. The procedure involves the dimethyltitanocene methylenation of N-(alkoxycarbonyl)amides derived from 2-allylanilines, followed by ring-closing metathesis of the resulting enamides. (c) 2005 Elsevier Ltd. All rights reserved.