Propargylic Activation Across a Heterobimetallic Ir−Sn Catalyst: Nucleophilic Substitution and Indene Formation with Propargylic Alcohols
作者:Paresh Nath Chatterjee、Sujit Roy
DOI:10.1021/jo100189z
日期:2010.7.2
A nucleophilicsubstitution of propargylicalcohols with carbon (arene, heteroarene, and allyltrimethylsilane), sulfur (thiol), oxygen (alcohol), and nitrogen (sulfonamide) nucleophiles has been demonstrated using a high-valent [Ir(COD)(SnCl3)Cl(μ-Cl)]2 catalyst in 1,2-dichloroethane to afford the corresponding propargylic products in moderate to excellent yields. Alkyl or aryl substituted tertiary
Propargylation of aromatic compounds using Ce(OTf)3 as catalyst
作者:Claudio C. Silveira、Samuel R. Mendes、Guilherme M. Martins
DOI:10.1016/j.tetlet.2012.01.046
日期:2012.3
Ce(OTf)(3) was successfully employed as catalyst for the activation of the hydroxyl group in the Friedel-Crafts reaction of aromatic compounds with propargylic alcohols in nitromethane. The products were obtained in good to excellent yields. (C) 2012 Elsevier Ltd. All rights reserved.