Syntheses of Thioethers and Selenide Ethers from Anilines
作者:Yi-Chen Shieh、Kai Du、R. Sidick Basha、Yung-Jing Xue、Bo-Hao Shih、Liang Li、Chin-Fa Lee
DOI:10.1021/acs.joc.9b00322
日期:2019.5.17
procedure was proposed for synthesizing thioethers and selenide ethers fromanilines under solvent-free and transition-metal-free conditions. Thioethers were formed when anilines reacted with thiols under blue light-emitting-diode (LED) irradiation at room temperature without a photocatalyst. When reactions were performed using anilines and diselenides, the corresponding selenide ethers were obtained with
synthesized through CAr-Se bondformation using readily available copper(I) iodide as catalyst under mild reaction conditions (82 ˚C) from aryl iodides and diphenyl diselenide. In this coupling reaction, solvent acetonitrile acts as ligand for copper(I) iodide and no external ligand is required. Less reactive aryl bromides also provide the diaryl selenides in good isolated yields. copper catalyst - acetonitrile
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
Rapid and precise preparation of reactive benzeneselenolate solutions by reduction of diphenyl diselenide with hydrazine–sodium methanolate
作者:Lars Henriksen、Nicolai Stuhr-Hansen
DOI:10.1039/a903686e
日期:——
Solutions of sodium benzeneselenolate sufficiently reactive to effect aromatic substitution and ester dealkylation are prepared in DMSO or NMP from diphenyldiselenide and hydrazine hydrate by titration with methanolic sodium methanolate.