79424-70-7Relevant articles and documents
Copper-catalyzed synthesis of unsymmetrical diorganyl chalcogenides (Te/Se/S) from boronic acids under solvent-free conditions?
Saba, Sumbal,Botteselle, Giancarlo Vaccari,Godoi, Marcelo,Frizon, Tiago Elias Allievi,Galetto, Fábio Zazyki,Rafique, Jamal,Braga, Antonio L.
, (2017/08/29)
The efficient and mild copper-catalyzed synthesis of unsymmetrical diorganyl chalcogenides under ligand- and solvent-free conditions is described. The cross-coupling reaction was performed using aryl boric acids and 0.5 equiv. of diorganyl dichalcogenides (Te/Se/S) in the presence of 3 mol % of CuI and 3 equiv. of DMSO, under microwave irradiation. This new protocol allowed the preparation of several unsymmetrical diorganyl chalcogenides in good to excellent yields.
Synthesis of unsymmetrical diorganyl chalcogenides under greener conditions: Use of an iodine/DMSO system, solvent- and metal-free approach
Saba, Sumbal,Rafique, Jamal,Braga, Antonio L.
supporting information, p. 1446 - 1452 (2015/05/27)
Herein, we report a greener iodine-catalyzed protocol to access different types of unsymmetrical diorganyl chalcogenides. This new approach works in the absence of solvent and metal. The desired products were obtained in good to excellent yields using one equivalent of arylboronic acids, half an equivalent of various diorganyl dichalcogenides, iodine (10 mol%) as a catalyst and 2 equivalents of dimethyl sulfoxide (DMSO; as oxidant), with a reaction time of 10 min under microwave irradiation.
DIARYL TELLURIDES FROM THE REACTION OF MODERATELY ACTIVATED IODOARENES WITH BENZENETELLUROLATE ION IN HEXAMETHYLPHOSPHORIC TRIAMIDE
Suzuki, Hitomi,Abe, Hisako,Ohmasa, Nobuko,Osuka, Atsuhiro
, p. 1115 - 1116 (2007/10/02)
When heated in hexamethylphosphoric triamide at 80-90 deg C, preferably in the presence of copper(II) iodide, moderately activated iodoarenes undergo nucleophilic attack by benzenetellurolate ion , giving the corresponding unsymmetrical diaryl tellurides
