SYNTHESIS OF ETHYL PYRROLE-2-CARBOXYLATES: A REGIOSELECTIVE CYCLIZATION OF ENAMINONES UNDER KNORR-TYPE CONDITIONS
                                
                                    
                                        作者:Ibrahim Elghamry                                    
                                    
                                        DOI:10.1081/scc-120002701
                                    
                                    
                                        日期:2002.1.1
                                    
                                    A regioselective formation of ethyl pyrrole-2-carboxylates 4 and 5 is effected by reductive condensation of enaminones 1a-f and ethyl 2-oximinoacetoacetate 2. The structures of the products have been delineated by spectroscopic methods.