The synthesis of a number of 2-anilino- and 2-(benzoylamino)-β -carbolin-3-ones in good yields by a one-step sequence from the reaction of pyranoindolones with phenylhydrazine or benzoylhydrazine is described; the observed good regioselectivity of the reaction is discussed. Full assignment of all 'H and 13 C NMR chemical shifts has been unambiguously achieved.
描述了通过吡喃吲哚酮与苯肼或苯甲酰肼反应的一步顺序以良好收率合成许多 2-苯胺基-和 2-(苯甲酰氨基)-β-咔啉-3-酮;讨论了观察到的反应良好的区域选择性。已经明确实现了所有 'H 和 13 C NMR 化学位移的完全分配。