834-15-1Relevant articles and documents
Trichloroisocyanuric Acid-Promoted Synthesis of Arylselenides and Aryltellurides from Diorganyl Dichalcogenides and Arylboronic Acids at Ambient Temperature
Sun, Nan,Zheng, Kai,Sun, Pengyuan,Chen, Yang,Jin, Liqun,Hu, Baoxiang,Shen, Zhenlu,Hu, Xinquan
, p. 3577 - 3584 (2021/06/15)
A transition-metal-free method for the synthesis of arylselenides and aryltellurides has been established based on the oxidative cross-coupling between diorganyl dichalcogenides and aryl boronic acids. With trichloroisocyanuric acid as an oxidant, the reaction proceeded smoothly to afford the desired products in 45–97% yields at ambient temperature. Three reaction reagents used in this method are stoichiometric and the oxidation by-product isocyanuric acid can be easily isolated and recovered. Besides of arylboronic acids, aryl trifluoroborates and aryl trihydroxyborates salts are also able to perform this transformation. (Figure presented.).
Rongalite-Promoted on Water Synthesis of Functionalised Tellurides and Ditellurides
Capperucci, Antonella,Ricci, Lorenzo,Tanini, Damiano
, (2020/02/11)
The on water reaction of sodium telluride with electrophiles has been explored. Na2Te, generated in situ through the rongalite (sodium hydroxymethanesulfinate)-promoted reduction of elemental tellurium, reacts with a wide variety of electrophil
Carbon-carbon bond forming reactions via Pd-catalyzed detellurative homocoupling of diorganyl tellurides
Zhang, Shaozhong,Kolluru, Lalitha,Vedula, Souseelya K.,Whippie, Drew,Jin, Jin
supporting information, p. 3594 - 3597 (2017/08/23)
A simple and highly efficient method for the constructions of Csp-Csp, Csp2-Csp2 and Csp3-Csp3 bonds is reported. The symmetrical diaryl tellurides undergo detellurative homocouplings to afford symmetrical biaryl products. The reactions are carried out at ambient temperature using PdCl2 as a catalyst in the presence of Ag2O and Na2CO3. Similarly, the detellurative homocouplings of dibenzyl telluride and bis(phenylethynyl)telluride give bibenzyl and the conjugated diyne, respectively.
Diarylation of chalcogen elements using arylboronic acids via copper- or palladium-catalyzed oxidative coupling
Taniguchi, Nobukazu
, p. 5818 - 5823 (2016/08/30)
Transition metal-catalyzed diarylations of sulfur, selenium and tellurium were achieved using arylboronic acids in air. A copper-catalyzed reaction of sulfur or selenium efficiently yielded numerous symmetrical diaryl sulfides or selenides in the presence of NH4BF4. However, the diarylation of tellurium was not possible using this method, and required a palladium catalyst in the presence of KI and air for the reaction to proceed.
Synthesis of Unsymmetrical Diaryl Selenides: Copper-Catalyzed Se-Arylation of Diaryl Diselenides with Triarylbismuthanes
Matsumura, Mio,Shibata, Kohki,Ozeki, Sota,Yamada, Mizuki,Murata, Yuki,Kakusawa, Naoki,Yasuike, Shuji
, p. 730 - 736 (2016/03/01)
Copper-catalyzed C(aryl)-Se bond formation by the reaction of diaryl diselenides with triarylbismuthanes in the presence of copper(I) acetate (10 mol%) and 1,10-phenanthroline (10 mol%) under aerobic conditions led to the formation of unsymmetric diaryl s
Catalyst free one-pot synthesis of symmetrical diaryl tellurides with Te0/KOH
Zhang, Shaozhong,Karra, Kranthi,Koe, Adam,Jin, Jin
supporting information, p. 2452 - 2454 (2013/06/05)
A highly efficient new protocol for C-Te bond formation leading to symmetrical diaryl tellurides has been developed. The synthesis employed aryl iodides and elemental tellurium as starting materials in the presence of KOH. It is a one-pot reaction without using any catalyst. Utilizing this new protocol, a variety of aryl and heteroaryl iodides are reacted with elemental tellurium to afford the corresponding diaryl tellurides in good to excellent yields.
Negishi cross-coupling of organotellurium compounds: Synthesis of biaryls, aryl-, and diaryl acetylenes
Stefani, Helio A.,Pena, Jesus M.,Manarin, Flavia,Ando, Romulo A.,Leal, Daiana M.,Petragnani, Nicola
supporting information; experimental part, p. 4398 - 4401 (2011/09/19)
A functional group tolerant palladium-catalyzed Negishi coupling of diaryl tellurides with organozinc has been developed. This methodology permits efficient preparation of biaryls, aryl acetylenes and diaryl acetylenes in moderate to good yields. A preliminary study to gain further insight into the reaction was performed using in situ ReactIR technology.
Deoxygenation of sulfoxides, selenoxides, telluroxides, sulfones, selenones and tellurones with Mg-MeOH
Khurana, Jitender M.,Sharma, Vandana,Chacko, Silvi A.
, p. 966 - 969 (2007/10/03)
The deoxygenation of a variety of sulfoxides, selenoxides, telluroxides, sulfones, selenones and tellurones has been reported with Mg-MeOH at room temperature in nearly quantitative yields. The deoxygenation is proposed to proceed by SET from Mg to the substrate.
Reduction of diaryltellurium dichlorides with samarium diiodide
Jia,Zhang,Zhou
, p. 253 - 258 (2007/10/02)
Samarium diiodide reduces diaryltellurium dichlorides to the corresponding diaryl tellurides in moderate to good yields under mild and neutral conditions.
