通过二碘鎓(III)盐的SO 2 / I交换有效地建立了用于二芳基环氧基砜构建的简单方法。随时可用的无机Na 2 S 2 O 5作为安全便捷的SO 2替代。顺利实现了多种功能化的二芳基环化砜,具有良好的收率和优异的收率,并且具有很好的官能团相容性。随后通过该方法以克为单位建立有机发光二极管(OLED)材料分子。在交换策略的简便条件下,成功提供了具有供体-受体基团和π-共轭桥基序的不对称共轭体系,该体系基本传达了半导体材料分子中的电子迁移率。
Copper‐Catalyzed Diphenylation of P(O)‐OH Bonds with Cyclic Diaryliodonium Salts
作者:Gang Wang、Biquan Xiong、Congshan Zhou、Yu Liu、Weifeng Xu、Chang‐An Yang、Ke‐Wen Tang、Wai‐Yeung Wong
DOI:10.1002/asia.201901284
日期:2019.12.2
A copper-catalyzed diphenylation of P(O)-OH bonds with cyclic diaryliodonium salts is described. Valuable 2'-iodo substituted biaryl phosphinic/phosphoric acid esters were obtained in good to excellent yields, which could be further transformed to diversified building blocks for the synthesis of bioactive compounds, pharmaceuticals and functional materials.
Oxygenation of cyclic diphenyl iodoniums (CDPIs) with varied medium‐ring sizes has been fully investigated. This practical copper‐catalyzed tandem reaction of CDPIs with water as the oxygensource enables the construction of derivatised dibenzofurans and xanthenes at moderate to good yields. Moreover, structurally important xanthones are also successfully accessed under the oxygenation conditions with
A series of multi-substituted phenanthrene derivatives were conveniently obtained by the title reaction in a [4 + 2] benzannulation pathway.
标题反应在[4 + 2]苯环化途径中方便地得到了一系列多取代菲衍生物。
Broad activity of diphenyleneiodonium analogues against Mycobacterium tuberculosis, malaria parasites and bacterial pathogens
作者:Nghi Nguyen、Danny W. Wilson、Gayathri Nagalingam、James A. Triccas、Elena K. Schneider、Jian Li、Tony Velkov、Jonathan Baell
DOI:10.1016/j.ejmech.2017.10.010
日期:2018.3
evaluated primarily for in vitro efficacy against Gram-positive and Gram-negative bacteria, commonly responsible for nosocomial and community acquired infections. In addition, we also assessed the activity of these compounds againstMycobacteriumtuberculosis (Tuberculosis) and Plasmodium spp. (Malaria). This led to the discovery of highly potent compounds active against bacterial pathogens and malaria parasites