摘要 描述了一种通过Cu(I)催化的乙烯基硒化物的环化反应获得2-芳基硒基苯并[ b ]硫属元素衍生物的有效方案。关键的乙烯基硒化物可以容易地由适当官能化的1,1-二溴苯乙烯制备,并且该方法允许以中等至优异的产率合成2-芳基硒基呋喃,-噻吩和-硒代苯。 描述了一种通过Cu(I)催化的乙烯基硒化物的环化反应获得2-芳基硒基苯并[ b ]硫属元素衍生物的有效方案。关键的乙烯基硒化物可以容易地由适当官能化的1,1-二溴苯乙烯制备,并且该方法允许以中等至优异的产率合成2-芳基硒基呋喃,-噻吩和-硒代苯。
Synthesis of 2-selenyl(sulfenyl)benzofurans via Cu-catalyzed tandem reactions of 2-(gem-dibromovinyl)phenols with diorganyl diselenides(disulfides)
作者:Jie Liu、Wei Chen、Lei Wang
DOI:10.1039/c3ra23361h
日期:——
An efficient synthesis of 2-selenyl(sulfenyl)benzofurans has been accomplished through a copper(I)-catalyzed tandem reaction of 2-(gem-dibromovinyl)phenols with diorganyl diselenides and disulfides in the presence of CuI/Mg/t-BuOLi in DMSO. Using this protocol, a variety of 2-selenyl(sulfenyl)benzofuran derivatives were obtained in good yields.
UVA Light‐promoted Catalyst‐free Cyclization of Vinyl Selenides: Green and Efficient Synthesis of C3‐Unsubstituted 2‐Selanyl Benzochalcogenophenes
作者:Gelson Perin、Thiago J. Peglow、Filipe Penteado、Patrick C. Nobre、Krigor B. Silva、Guilherme Stach、Thiago Barcellos、Eder J. Lenardão、Juliano A. Roehrs
DOI:10.1002/asia.202101394
日期:2022.4.14
An environmentally friendly protocol to prepare selenium-containing benzo[b]chalcogenophenes by photocyclization of o-chalcogen-substituted selanylalkenes using UVA irradiation is presented.