chemical warfare agents was performed in organic medium by electrophiliciodine reagents. Kinetic experiments on sulfur mustard (HD) showed rapid (t1/2 < 3 min) and selective oxidation to the nonvesicant sulfoxide product (HD-SO) in acetonitrile or propylene carbonate solutions (9% water added) containing excess N-iodosuccinimide (NIS). Molecular iodine solutions in these solvents led to similar results as
Surface decorated magnetic nanoparticles with Mn-porphyrin as an effective catalyst for oxidation of sulfides
作者:Saeedeh Shokoohi、Saeed Rayati
DOI:10.1142/s1088424621500802
日期:2022.1
different sulfides with urea hydrogen peroxide (UHP) in the presence of imidazole as co-catalyst in ethanol under heterogeneous conditions. The eco-friendly property of ethanol strongly induced us to employ it as the reaction solvent in this oxidation system. Complete conversion ( ≥99) of sulfides to the corresponding sulfoxide or sulfones was obtained for ethyl phenylsulfide, phenylvinylsulfide, diallyl
Artificial Light‐Harvesting Systems Based on AIEgen‐branched Rotaxane Dendrimers for Efficient Photocatalysis
作者:Wei‐Jian Li、Xu‐Qing Wang、Dan‐Yang Zhang、Yi‐Xiong Hu、Wei‐Tao Xu、Lin Xu、Wei Wang、Hai‐Bo Yang
DOI:10.1002/anie.202106035
日期:2021.8.16
harvesting, the precise synthesis of a new family of AIEgen-branched rotaxane dendrimers was successful realized from an AIEgen-functionalized [2]rotaxane through a controllable divergent approach. In the resultant AIE macromolecules, up to twenty-one AIEgens located at the tails of each branches, thus making them the first successful example of AIEgen-branched dendrimers. Attributed to the solvent-induced
Chemoselective Oxidation of Sulfides to Sulfoxides Using<i>N</i>-<i>t</i>-Butyl-<i>N</i>-chlorocyanamide
作者:Vinod Kumar、Mahabir Parshad Kaushik
DOI:10.1246/cl.2005.1230
日期:2005.9
A simple, efficient and highly chemoselective method has been developed for the synthesis of sulfoxides from sulfides using N-t-butyl-N-chlorocyanamide as an oxidant in a mixed acetonitrile–water solution with a 1:1 mol ratio of oxidant to sulfides. N-t-butyl-N-chlorocyanamide, a source of positive chlorine, has been used for conversion of the variety of sulfides into their corresponding sulfoxides in quantitative yields.
A peroxotungstate-ionic liquid brush assembly: an efficient and reusable catalyst for selectively oxidizing sulfides with aqueous H2O2 solution in neat water
An efficient and reusable heterogeneous catalytic assembly of peroxotungstate held in a ionic liquid (IL) brush was synthesized and an environmentally-friendly procedure was developed for selective oxidation of sulfides at room temperature using 30 wt.% hydrogen peroxide as the terminal oxidant and water as a sole solvent. No organic co-solvent or other additive was needed. A 1.5-2.0 mol% (based on