Ammonium iodide-mediated regioselective chalcogenation of chromones with diaryl disulfides and diselenides

<p>A metal-free method for the synthesis of 3-chalcogenyl-chromones/quinolones from chromones/quinolones and diorganyl dichalcogenides using ammonium iodide under air was developed. This approach allowed the preparation of a wide range of 3-selenyl- and 3-sulfenyl-chromones/quinolones in good to excellent yields.</p

Phase Diagram for the NaOH–Al(OH)₃–Na₂CO₃–H₂O System at 393 K

A phase diagram for the NaOH–Al­(OH)₃–Na₂CO₃–H₂O system at 393 K is constructed, and five crystallization zones are discussed in detail. With the increase of the concentration of sodium hydroxide, the Al₂O₃ solubility shows an initial rise followed by a downward trend, but the solubility of Na₂CO₃ decreases. The solubility of Na₂CO₃ is found to be not sensitive to the temperature and the Al₂O₃ concentration in the sodium aluminate solution. The study indicates a feasible evaporation process when the high alkali aluminate solution with a high molar ratio of sodium oxide to alumina (MR) was concentrated from 380 g·L^–1 to 550 g·L^–1 or even to higher concentrations

Data analysis and synthesis of the AST levels, pruritus scores and numbers of adverse events based on respective baselines or data types.

<p><b>(A)</b> Meta-analysis of AST levels based on the studies by <i>Qin Bo</i> and <i>Zhu Shishu</i>. <b>(B)</b> Meta-analysis of pruritus scores in the subgroup analysis. <b>(C)</b> Meta-analysis of adverse events for SAMe compared with placebos. <b>(D)</b> Meta-analysis of adverse events in an additional analysis.</p

Characteristics of the included trials.

<p>Characteristics of the included trials.</p

The count of collisions by the ranges of direct financial loss.

<p>The count of collisions by the ranges of direct financial loss.</p

Network cross K-function analysis between traffic collisions and different types of POIs in Jianghan, Wuhan, China: (a) Transportation Services; (b) Hotels; (c) Sports and Recreation; (d) Residential Communities; (e) Vehicle Maintenance; and (f) Food.

<p>Network cross K-function analysis between traffic collisions and different types of POIs in Jianghan, Wuhan, China: (a) Transportation Services; (b) Hotels; (c) Sports and Recreation; (d) Residential Communities; (e) Vehicle Maintenance; and (f) Food.</p

Meta-analysis of TBIL and ALT levels.

<p><b>(A)</b> Meta-analysis of TBIL levels based on the study by <i>P</i>. <i>L</i>. <i>Nicastri</i>. <b>(B)</b> Meta-analysis of TBIL levels based on the studies by <i>Huang Jinyang</i> and <i>V</i>. <i>V</i>. <i>Stelmakh</i>. <b>(C)</b> Meta-analysis of TBIL levels based on the studies by <i>Qin Bo</i> and <i>Zhu Shishu</i>. <b>(D)</b> Meta-analysis of ALT levels based on the study by <i>P</i>. <i>L</i>. <i>Nicastri</i>. <b>(E)</b> Meta-analysis of ALT levels based on the studies by <i>Qin Bo</i> and <i>T</i>. <i>Binder</i>. <b>(F)</b> Meta-analysis of ALT levels based on the studies by <i>Qin Bo</i> and <i>Huang Jinyang</i>.</p

Flow diagram of the process (and the reasons) of selecting and excluding studies for this meta-analysis.

<p>Flow diagram of the process (and the reasons) of selecting and excluding studies for this meta-analysis.</p

Network differential Local Moran’s I pattern maps of the changes of six hours of day periods from weekdays to weekends in Jianghan, Wuhan, China: (a) 2–6; (b) 6–10; (c) 10–14; (d) 14–18; (e) 18–22; and (f) 22–2.

<p>Network differential Local Moran’s I pattern maps of the changes of six hours of day periods from weekdays to weekends in Jianghan, Wuhan, China: (a) 2–6; (b) 6–10; (c) 10–14; (d) 14–18; (e) 18–22; and (f) 22–2.</p

Spatial distribution of the neighborhood set LIMA of six consecutive pairs of the six hours per day periods in Jianghan, Wuhan, China: (a) 2–6 to 6–10; (b) 6–10 to 10–14; (c) 10–14 to 14–18; (d) 14–18 to 18–22; (e) 18–22 to 22–2; and (f) 22–2 to 2–6.

<p>Spatial distribution of the neighborhood set LIMA of six consecutive pairs of the six hours per day periods in Jianghan, Wuhan, China: (a) 2–6 to 6–10; (b) 6–10 to 10–14; (c) 10–14 to 14–18; (d) 14–18 to 18–22; (e) 18–22 to 22–2; and (f) 22–2 to 2–6.</p