Synthesis of 2-aminoazulene derivatives. Nucleophilic and palladium-catalyzed amination of 2-substituted azulene
                                
                                    
                                        作者:Ryuji Yokoyama、Shunji Ito、Tetsuo Okujima、Takahiro Kubo、Masafumi Yasunami、Akio Tajiri、Noboru Morita                                    
                                    
                                        DOI:10.1016/j.tet.2003.08.048
                                    
                                    
                                        日期:2003.10
                                    
                                    Amination of 2-substituted azulene was carefully examined using several types of amines, and the scope and limitation of substrates and reagents in these direct nucleophilic aminations were found. The synthesis of 2-aminoazulenes was successfully achieved by the reaction of 2-bromoazulene with several amines via palladium-catalyzed amination. (C) 2003 Elsevier Ltd. All rights reserved.