A Convenient Method for the Preparation of Diaryl Tellurides and Diaryl Selenides
作者:Chuanfeng Chen、Mei Qiu、Xun Jun Zhou
DOI:10.1080/00397919108021570
日期:1991.9
Abstract Sodium hydrogen telluride or selenide reacts rapidly with aryldiazonium fluoborates to give the corresponding symmetric diaryl tellurides or selenides.
摘要 碲化氢或硒化氢钠与芳基重氮氟硼酸盐迅速反应,生成相应的对称二芳基碲化物或硒化物。
Synthesis of Symmetrical Polycyclic Aromatic Tellurides
A direct synthesis of 13 polycyclic aromatic tellurides from the corresponding aromatic iodides has been achieved using sodium telluride, prepared by two different methods; (i) using tellurium and Rongalite HOCH2SO2Na in dilute aqueous alkali, and (ii) from tellurium and sodium hydride in dry dimethylformamide. A comparison of these two types of tellurating agents has been made.
使用通过两种不同方法制备的碲化钠,从相应的芳香族碘化物直接合成了 13 种多环芳香族碲化物; (i) 在稀碱水溶液中使用碲和雕白粉 HOCH2SO2Na,以及 (ii) 在干燥二甲基甲酰胺中使用碲和氢化钠。对这两种类型的碲化剂进行了比较。
Silver-catalyzed synthesis of symmetrical diaryl tellurides from arylboronic acids and tellurium
作者:Gustavo B. Blödorn、Manoela Sacramento、Eduardo M. A. Sandagorda、Ariana S. Lima、Joel S. Reis、Márcio S. Silva、Diego Alves
DOI:10.1039/d2nj04019k
日期:——
different arylboronic acids with elemental tellurium through a simple methodology using a silver catalyst. In contrast to other methodologies described in the literature, this protocol takes advantage of using Te0 for the synthesis of tellurides, skipping the preparation steps of organotellurium compounds as intermediates. The developed method was tolerant to a series of arylboronic acids, obtaining a wide
我们在此报告了通过使用银催化剂的简单方法,通过不同的芳基硼酸与元素碲反应合成对称碲化物。与文献中描述的其他方法相比,该协议利用 Te 0合成碲化物,跳过有机碲化合物作为中间体的制备步骤。所开发的方法对一系列芳基硼酸具有耐受性,使用10 mol%的AgNO 3作为催化剂,DMSO作为溶剂和3当量的Te 0 ,获得了广泛的反应范围。具有吸电子基团和给电子基团的碲化物连接到芳基的邻位、间位和获得了对位的职位,从而可以研究这些群体在每个职位上的影响。进行了对照实验以资助一个看似合理的提议机制。
New general synthesis of diaryl tellurides from aromatic amines
作者:Lars Engman
DOI:10.1021/jo00165a026
日期:1983.8
Sadekov,I.D. et al., Journal of general chemistry of the USSR, 1977, vol. 47, p. 1202 - 1209