Results 221 to 230 of about 976,651 (304)

General sulfone construction via sulfur dioxide surrogate control

, 2020
A highly efficient one-step synthesis of alkyl–alkyl and aryl–alkyl sulfones with a facile combination of halides, sulfur dioxide surrogates and phosphate esters is described.
Shihao Chen, Yaping Li, Ming Wang, Xuefeng Jiang   +3 more
semanticscholar   +1 more source

Recent progress in the small-molecule fluorescent probes for the detection of sulfur dioxide derivatives (HSO3-/SO32-).

Free Radical Biology & Medicine, 2019
Sulfur dioxide (SO2) had been recognized as an environmental pollutant produced from industrial processes. SO2 is water soluble and forms hydrated SO2 (SO2·H2O), bisulfite ion (HSO3-), and sulfite ion (SO32-) upon dissolution in water.
Bing Yang, Jing Xu, Hailiang Zhu
semanticscholar   +1 more source

Inorganic sulfites as the sulfur dioxide surrogates in sulfonylation reactions.

Chemical Communications, 2019
Recent advances in the sulfonylation reactions by using inorganic sulfites as the source of sulfonyl group are reported. The approaches employing inorganic sulfites as sulfur dioxide surrogates are attractive and promising for the synthesis of sulfonyl ...
Shengqing Ye, Guanyinsheng Qiu, Jie Wu
semanticscholar   +1 more source

Aryl Methyl Sulfone Construction from Eco-Friendly Inorganic Sulfur Dioxide and Methyl Reagents.

ChemSusChem, 2019
A three-component cross-coupling protocol of boronic acid, sodium metabisulfite, and dimethyl carbonate was developed for the construction of significant functional methyl sulfones, in which introduction of sulfur dioxide at the last stage was ...
Ming Wang, Jiaoyan Zhao, Xuefeng Jiang
semanticscholar   +1 more source

Photoredox-catalyzed sulfonylation of alkyl iodides, sulfur dioxide, and electron-deficient alkenes.

Chemical Communications, 2019
A photoredox-catalyzed sulfonylation of alkyl iodides, sulfur dioxide, and electron-deficient alkenes under mild conditions is achieved. This reaction proceeds through alkyl radicals formed in situ from alkyl iodides under visible light irradiation in ...
Shengqing Ye, D. Zheng, Jie Wu, Guanyinsheng Qiu   +3 more
semanticscholar   +1 more source

Novel selective adsorption and photodegradation of BPA by molecularly imprinted sulfur doped nano-titanium dioxide

, 2020
To achieve selective adsorption of bisphenol A (BPA) and synergy between photocatalysis and adsorption, a molecular imprinting surface-polymerized nanoparticles loaded on sulfur-doped titanium dioxide hollow spheres (MICST) with the large specific ...
Guangzhu Zhou, Yiyun Cao, Yuqin Jin, Cuizhen Wang, Yue Wang, Chunyu Hua, Sai Wu   +6 more
semanticscholar   +1 more source

Direct C-H Methylsulfonylation of Alkenes with the Insertion of Sulfur Dioxide.

Journal of Organic Chemistry, 2019
The direct C-H methylsulfonylation of alkenes using inorganic sodium metabisulfite as the sulfur dioxide surrogate is described. This method provides convenient access to (E)-2-methyl styrenyl sulfones in good yields.
F. He, Xinxing Gong, P. Rojsitthisak, Jie Wu   +3 more
semanticscholar   +1 more source

Zinc-Mediated Intermolecular Reductive Radical Fluoroalkylsulfination of Unsaturated Carbon-Carbon Bonds with Fluoroalkyl Bromides and Sulfur Dioxide.

Chemistry, 2019
A versatile and general zinc-mediated intermolecular reductive radical fluoroalkylsulfination of unsaturated C-C bonds has been developed using readily available fluoroalkyl bromides and 1,4-diazabicyclo[2.2.2]octane-bis(sulfur dioxide) adduct (DABSO ...
Yongan Liu, Qiongzhen Lin, Zhiwei Xiao, Changge Zheng, Yong Guo, Qing‐Yun Chen, Chao Liu   +6 more
semanticscholar   +1 more source

Reductive leaching of indium-bearing zinc ferrite in sulfuric acid using sulfur dioxide as a reductant

Hydrometallurgy, 2019
Indium extraction from synthetic indium-bearing zinc ferrite (IBZF) was investigated using sulfur dioxide as a reductant in sulfuric acid medium, and the recovery of indium and the full use of sulfur dioxide were achieved. The leaching kinetics of indium
Yangyang Fan, Yan Liu, L. Niu, T. Jing, Wei-guang Zhang, Ting’an Zhang   +5 more
semanticscholar   +1 more source

Sulfur Modified Chromium Dioxide

Japanese Journal of Applied Physics, 1972
Chromium dioxide modified with sulfur has been studied with the intention of obtaining a magnetic powder which is suitable for the tape of thermomagnetic duplication. Sulfur ions dissolve into CrO 2 up to about 0.17 wt.% and decrease the Curie temperature and saturation magnetization.
E. Hirota, T. Kawamata, T. Mihara, Y. Terada   +3 more
openaire   +1 more source