Reactivity of 6-aminopyrimidin-4(3H)-ones towards dimethyl acetylenedicarboxylate (DMAD). Tandem diels-alder/retro diels-alder (DA/RDA) reaction in the synthesis of 2-aminopyridines.
                                
                                    
                                        作者:Justo Cobo、Celeste García、Manuel Melguizo、Adolfo Sánchez、Manuel Nogueras                                    
                                    
                                        DOI:10.1016/s0040-4020(01)81767-1
                                    
                                    
                                        日期:1994.8
                                    
                                    The reactions of 6-aminopyrimidin-4(3H)-one derivatives, 1a-d, with DMAD, 2, are discussed in this paper, 2-aminopyridines, 3, and 6-amino-5-vinylpyrimidin-4-(3H)-ones, 4 and 5, have been obtained as main products, which can be explained on the basis of DA/RDA reactions, or Michael Addition on pyrimidine derivatives.
                                    本文讨论了6-
氨基嘧啶4(3H)-一衍
生物1a-d与
DMAD 2的反应,2-
氨基吡啶3和6-
氨基-5-
乙烯基嘧啶4-(3H) -酮,4和5,已经获得了作为主要产品,它可以
DA / R
DA反应或迈克尔加成对
嘧啶衍
生物的基础上进行说明。