Herein, we report an eco-friendly synthesis of selenoesters from acyl chlorides catalyzed by recyclable CuO nanopowder in ionic liquid as a recyclable solvent in good to excellent yields. This protocol shows high efficiency in catalyzing this transformation in a greener fashion than previous protocols due to the non-residual methodological design.
A straightforward and efficient methodology is described to synthesize structurally diverse diorganyl selenides, sulfides, seleno- and thioesters by using commercially available Zn dust in ionic liquid. Excellent yields were achieved under neutral conditions at room temperature in a short time. The solvent/ionic liquid is reusable and exhibited higher performance as compared with organic solvents. (C) 2011 Elsevier Ltd. All rights reserved.
Ionic liquid: an efficient and reusable media for seleno- and thioester synthesis promoted by indium
作者:Greice Tabarelli、Eduardo E. Alberto、Anna M. Deobald、Graciane Marin、Oscar E.D. Rodrigues、Luciano Dornelles、Antonio L. Braga
DOI:10.1016/j.tetlet.2010.08.076
日期:2010.10
A series of thio and selenoesters were efficiently obtained employing stable diorganyl chalcogenides, acyl chlorides, and In as reducing agent in BMIM center dot PF6. Recycling of the ionic liquid was also performed, which was reused three times. (C) 2010 Elsevier Ltd. All rights reserved.
Synthesis of selenol esters from diorganyl diselenides and acyl chlorides under solvent-free conditions and microwave irradiation
作者:Marcelo Godoi、Eduardo W. Ricardo、Giancarlo V. Botteselle、Fabio Z. Galetto、Juliano B. Azeredo、Antonio L. Braga
DOI:10.1039/c1gc16243h
日期:——
Herein, we report an efficient, quick and eco-friendly new method for the synthesis of a variety of selenol esters. This novel solvent-free methodology gave good to excellent isolated yields of desired products after just 2 min undermicrowave irradiation. Furthermore, by using the same green approach, we were also able to synthesize selenocarbonates bearing interesting functionalities.
Efficient synthesis of selenol esters from acid chlorides mediated by indium metal
作者:Graciane Marin、Antonio L. Braga、Anderson S. Rosa、Fábio Z. Galetto、Robert A. Burrow、Hugo Gallardo、Marcio W. Paixão
DOI:10.1016/j.tet.2009.03.069
日期:2009.6
This article describes an efficient and easy one-pot route for the synthesis of a wide range of selenol estersfrom acyl chloride with diselenides in the presence of indium metal. A variety of functional groups can be tolerated within the diorgano diselenide and the acyl chloride coupling partner.