作者:Kevin Hisler、Aurélien G.J. Commeureuc、Sheng-ze Zhou、John A. Murphy
DOI:10.1016/j.tetlet.2009.02.060
日期:2009.7
synthesised via alkylidenation of acyl phenylhydrazides using phosphoranes and the Petasis reagent, followed by in situ thermal rearrangement of the product enehydrazines. The Petasis reagent provides an essentially neutral equivalent of the [acid-catalysed] Fischer indole synthesis, but with acyl phenylhydrazides as starting substrates. Alkylidene triphenylphosphoranes convert aroyl phenylhydrazides to indoles
吲哚是通过使用磷烷和Petasis试剂对酰基苯基酰肼进行烷基化,然后对产物烯肼进行原位热重排而合成的。Petasis试剂可提供[酸催化]的Fischer吲哚合成的基本中性当量,但以酰基苯基酰肼为起始底物。亚炔基三苯基膦将芳酰基苯基酰肼转化为吲哚,但是衍生自脂族羧酸的酰基苯基酰肼经过Brunner反应形成吲哚-2-酮。