1190618-08-6Relevant articles and documents
Synthesis of symmetrical and unsymmetrical tellurides via silver catalysis
Goldani, Bruna,do Sacramento, Manoela,Lenard?o, Eder J.,Schumacher, Ricardo F.,Barcellos, Thiago,Alves, Diego
, p. 15603 - 15609 (2018)
We describe here a simple and efficient methodology for the cross-coupling reaction of diaryl ditellurides with aryl boronic acids catalyzed by AgNO3. The general applicability and wide substrate scope make this an interesting method for the synthesis of a series of symmetrical and unsymmetrical diaryl tellurides. This silver-catalyzed protocol tolerates a variety of diaryl ditellurides as well as aryl boronic acids by using only 10 mol% of AgNO3 to provide the desired products in high yields. The reaction mechanism was proposed after high resolution mass spectrometry analysis and the active (PhTe)2AgIII intermediate could be detected.
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
, p. 99 - 103 (2019)
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.
