of cationic charge delocalization controlled by the N-substituents. Exploiting this phenomenon, a multitude of different transformations have become available, leading, i.e., to the regiodivergent synthesis of indoles and tryptophans.
尽管有充足的证据表明高价 F-碘提供了独特的反应性,但机理研究远远落后。为了阐明此类 F 试剂的异常行为,我们对苯乙烯的化学发散转化进行了计算和实验研究。我们将螺环 F-环丙烷鉴定为 C, H-氟化和 C, H-胺化途径的常见中间体。这种关键化合物的命运取决于由 N 取代基控制的阳离子电荷离域程度。利用这种现象,可以进行多种不同的转化,即导致吲哚和色氨酸的区域发散合成。
966. Heterocyclic compounds of nitrogen. Part I. The alkylation and acylation of 3-phenyloxindole, and the preparation of some derivatives of 2-hydroxy-3-phenylindole
作者:J. Malcolm Bruce、F. K. Sutcliffe
DOI:10.1039/jr9570004789
日期:——
Dirhodium(II) Carboxylate Catalyzed Formation of 1,2,3-Trisubstituted Indoles from Styryl Azides
作者:Crystalann Jones、Quyen Nguyen、Tom G. Driver
DOI:10.1002/anie.201308611
日期:2014.1.13
Dirhodium(II)‐carboxylate complexes were discovered to promote the selective migration of acyl groups in trisubstituted styryl azides to form 1,2,3‐trisubstituted indoles. The styryl azides are readily available in three steps from cyclobutanone and 2‐iodoaniline.