名称:
                                New use of bis(benzotriazolyl)-1,2-(dialkylamino)ethanes for the synthesis of 2-H-3-dialkylamino imidazo[1,2-a]pyrazine derivatives
                             
                            
                                摘要:
                                First direct synthesis of 2-H-3-N-dialkyl-imidazo[1,2-a]pyrazines is described. This approach makes use of accessible substituted pyrazines and the assistance of benzotriazole. In such a manner we accomplished the introduction of cyclic amines at C-3 of the scaffold in a convenient formal cyclisation procedure. Detailed examples and utility of this approach are presented herein. (C) 2011 Elsevier Ltd. All rights reserved.
                             
                                                            
                                    DOI:
                                    10.1016/j.tetlet.2011.12.077