described. The process involves an efficient nucleophilic ring opening of the aziridine, giving access to a wide range of aminohydrazones, isolated with excellent yields. A “one-pot” procedure, combining the ring opening with a cyclization and an oxidation step, allows the preparation of diversified triazines in good yields.
描述了用于N-
甲苯磺酰基d和
氮丙啶区域选择性转化为3,6-二取代和3,5,6-三取代的
1,2,4-三嗪的新的三步式伸缩反应序列。该方法涉及
氮丙啶的有效亲核开环,从而获得了以优异收率分离的各种
氨基hydr。“一锅法”程序将开环与环化和氧化步骤结合在一起,可以高收率制备多样化的三嗪。