<b>Preparation of Indoles from </b>
<b><i>o</i></b>
<b>-Alkynyltrifluoroacetanilides Through the Aminopalladation-Reductive Elimination Process</b>
作者:Sandro Cacchi、Giancarlo Fabrizi、Luca Parisi
DOI:10.1055/s-2004-815993
日期:——
The functionalized pyrrole nucleus contained in the indole system has been assembled via the palladium-catalyzed reaction of o-alkynyltrifluoroacetanilides with organic halides/triflates or allyl carbonates. In the presence of carbon monoxide, a three-component reaction can take place and indole derivatives incorporating a molecule of carbon monoxide have been obtained.
2-Substituted 3-Aryl- and 3-Heteroarylindoles by the Palladium-Catalyzed Reaction of<i>o</i>-Trifluoroacetanilides with Aryl Bromides and Triflates.
作者:Sandro Cacchi、Giancarlo Fabrizi、Doriano Lamba、Fabio Marinelli、Luca M. Parisi
DOI:10.1055/s-2003-38079
日期:——
The palladium-catalyzed reaction of aryl and heteroaryl bromides and triflates with o-alkynyltrifluoroacetanilides affords 2-substituted 3-aryl- and heteroarylindoles usually in excellent yield. The procedure can be applied to the synthesis of 2-substituted indole-3-carboxaldehydes.