Extending Pummerer Reaction Chemistry. Application to the Oxidative Cyclization of Indole Derivatives
作者:Ken S. Feldman、Daniela Boneva Vidulova
DOI:10.1021/ol0493406
日期:2004.5.1
Treatment of 2-(phenylsulfinyl)indoles bearing a pendant nucleophile at C(3) with Tf(2)O/lutidine triggers a Pummerer-like cyclization to furnish 3,3-spirocyclic-2-(phenylthio)indolenine products, which can, in turn, be hydrolyzed to 3,3-spirocyclic oxindoles. [reaction: see text]
用Tf(2)O / lutidine处理在C(3)处有亲核侧基的2-(苯亚磺酰基)吲哚的处理会触发Pummerer样环化作用,从而提供3,3-spirocyclic-2-(phenylthio)indolenine产品,该产品可以依次将其水解为3,3-螺环氧吲哚。[反应:看文字]