A series of 2′-nitroisoflavones 8–10, 15, 22, 27 and 28 was prepared via the (2-nitro-phenyl)-acetic acids 1, 13, 19 and 25. In order to obtain the corresponding 2′-aminoisoflavones the reduction of 8–10, 15, 22, 27 and 28 was undertaken. Surprisingly, new 3-salicyloylindoles instead of the expected 2′-aminoisoflavones were the main reduction products. In the following paper the preparation of the
一系列2'- nitroisoflavones 8-10,15,22,27和28的制备通过将(2-硝基-苯基) -
乙酸1,图13,19和25。为了获得相应的2'-aminoisoflavones减少了8-10、15、22、27和28。出人意料的是,新的3-
水杨基
吲哚而不是预期的2'-
氨基异
黄酮是主要的还原产物。在下面的纸张2'- nitroisoflavones的制备8-10,15,22,27和28以及还原实验获得2'- aminoisoflavones 33和35和3-salicyloylindoles将描述图29-32、34和36。此外,将讨论在还原条件下由2'-硝基异
黄酮形成3-
水杨基羟
吲哚的可能机理。