Electrophilic Amination of Adenines. Formation and Characteristics of<i>N</i>-Aminoadenines
                                
                                    
                                        作者:Tetsuya Saga、Toyo Kaiya、Shoji Asano、Kohfuku Kohda                                    
                                    
                                        DOI:10.1080/07328319608002381
                                    
                                    
                                        日期:1996.1
                                    
                                    Amination of adenine with H2N-O-SO3H in alkaline media afforded 1-, 3-, 7- and 9-aminoadenine isomers at a ratio of about 1:1:3:1. In neutral media, the product ratio of the isomers changed to about 3:1:1:0. These results were different from the regioselectivity obtained by methylation of adenine with dimethyl sulfate under similar conditions. Amination of adenine with dinitrophenoxyamine in DMF gave 1-aminoadenine as the main product and this regioselectivity was also different from that of methylation with CH.3I. Chemical characteristics of these N-amino adenines are described.