Alkynyl Sulfonium Salts Can Be Employed as Chalcogen‐Bonding Catalysts and Generate Alkynyl Radicals under Blue‐Light Irradiation
作者:Yu Lu、Qiang Liu、Zhi‐Xiang Wang、Xiang‐Yu Chen
DOI:10.1002/anie.202116071
日期:2022.4.11
Alkynyl sulfonium salts were employed as chalcogen bonding (ChB) catalysts for the first time. They display superior capability in the generation of alkynyl radicals under blue-light irradiation.
Magnetite (Fe3O4) nanoparticles: an efficient and recoverable catalyst for the synthesis of alkynyl chalcogenides (selenides and tellurides) from terminal acetylenes and diorganyl dichalcogenides
作者:Marcelo Godoi、Daiane G. Liz、Eduardo W. Ricardo、Manuela S.T. Rocha、Juliano B. Azeredo、Antonio L. Braga
DOI:10.1016/j.tet.2013.09.095
日期:2014.5
We present herein a new and efficient methodology for the synthesis of alkynyl chalcogenides from terminal acetylenes and diorganyl dichalcogenides, catalyzed by Fe3O4 nanoparticles. This new approach provided the desired products in good to excellent yields. Moreover, the catalyst was easily recoverable using an external magnet and reused for further experiments without loss of catalytic activity. (C) 2013 Elsevier Ltd. All rights reserved.