Synthesis of Functionalized Organoselenium Materials: Selenides and Diselenides Containing Cholesterol
作者:Tiago E. Frizon、Jamal Rafique、Sumbal Saba、Ivan H. Bechtold、Hugo Gallardo、Antonio L. Braga
DOI:10.1002/ejoc.201500124
日期:2015.6
A simple and efficient procedure for the synthesis of three new series of chalcogen liquid crystals, based on selenides and diselenides, containingcholesterol in their structure, is described. Thermal and liquid crystalline properties were investigated by POM, DSC, TGA and XRD scattering. Six of the nine molecules synthesized showed liquid crystal properties, with smectic mesomorphism. All the compounds
Enhancing the Potential of Miniature-Scale DNA-Compatible Radical Reactions via an Electron Donor–Acceptor Complex and a Reversible Adsorption to Solid Support Strategy
idiosyncratic needs and the required low concentration (∼1 mM or less) of the library intermediate. Here, we report visible-light-promoted on-DNA radical coupling reactions via an electrondonor–acceptor (EDA) complex and a reversible adsorption to solid support (RASS) strategy. This protocol provides a unique solution to the challenges of increasing the reactivity of highly diluted DNA substrates and reducing
DNA 编码文库 (DEL) 技术是发现生物活性探针分子和药物先导物的有力工具。大多数情况下,DEL 技术的成功源于化学库的分子多样性。然而,DEL 的构建受到特殊需求和所需的低浓度(~1 mM 或更低)的库中间体的限制。在这里,我们报告了可见光促进的 DNA 自由基偶联反应,通过电子供体 - 受体 (EDA) 复合物和固体载体的可逆吸附 (RASS) 策略。该协议为提高高度稀释的 DNA 底物的反应性和减少光催化剂中重金属残留的挑战提供了独特的解决方案。获得了一系列具有良好到定量转化的 DNA 上吲哚砜和硒化物衍生物。
Iodine mediated synthesis of diaryl diselenides using SeO<sub>2</sub> as a selenium source
作者:Dileep Kommula、Qing Li、Siyang Ning、Wujun Liu、Qian Wang、Zongbao K. Zhao
DOI:10.1080/00397911.2020.1728775
日期:2020.4.2
Abstract A simple, eco-friendly and convenient procedure has been developed for the synthesis of diphenyl diselinides from readily available aryl boronic acids by reaction with SeO2 in the presence of iodine under simple conditions. The methodology is reported about 19 examples and applicable to a broad scope of aryl boronic acids containing electron-rich and electron-poor substituents. Apart from