65365-76-6Relevant articles and documents
C-Te Cross-Coupling of Diaryl Ditellurides with Arylboronic Acids by Using Copper(I) Thiophene-2-carboxylate under Mild Conditions
Koguchi, Shinichi,Shibuya, Yuga,Igarashi, Yusuke,Takemura, Haruka
supporting information, p. 99 - 103 (2019/01/04)
We describe the successful cross-coupling of diaryl ditellurides with arylboronic acids by using copper(I) thiophene-2-carboxylate (CuTC) under mild conditions. Although other studies have reported that highly polar solvents (such as DMSO) or bases are required, this reaction was completed by using CuTC and common solvents under neutral conditions at room temperature. This cross-coupling reaction was performed with diaryl ditellurides and arylboronic acids bearing various groups, affording the corresponding diaryl tellurides in good to excellent yields.
Alternative Metal-Free Synthesis of Diorganoyl Selenides and Tellurides Mediated by Oxone
Perin, Gelson,Duarte, Luis Fernando B.,Neto, José S. S.,Silva, Márcio S.,Alves, Diego
supporting information, p. 1479 - 1484 (2018/05/03)
We herein describe an alternative metal-free methodology for the synthesis of diorganyl selenides and tellurides mediated by Oxone . The products were obtained in moderate to excellent yields by reactions of diorganyl diselenides or ditellurides with aryl boronic acids mediated by Oxone with use of EtOH as the solvent. The methodology is applicable to a broad scope of diorganyl dichalcogenides and aryl boronic acids containing electron-rich, electron-poor, and sterically hindered substituents.
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.
