sj-pdf-1-chl-10.1177_17475198211039133 – Supplemental material for A novel thermoregulated phase-transfer catalysis system for chiral nano-Pt-catalyzed asymmetric hydrogenation

Supplemental material, sj-pdf-1-chl-10.1177_17475198211039133 for A novel thermoregulated phase-transfer catalysis system for chiral nano-Pt-catalyzed asymmetric hydrogenation by Pu Chen and Yanhua Wang in Journal of Chemical Research</p

sj-pdf-2-chl-10.1177_17475198211039133 – Supplemental material for A novel thermoregulated phase-transfer catalysis system for chiral nano-Pt-catalyzed asymmetric hydrogenation

Supplemental material, sj-pdf-2-chl-10.1177_17475198211039133 for A novel thermoregulated phase-transfer catalysis system for chiral nano-Pt-catalyzed asymmetric hydrogenation by Pu Chen and Yanhua Wang in Journal of Chemical Research</p

sj-pdf-3-chl-10.1177_17475198211039133 – Supplemental material for A novel thermoregulated phase-transfer catalysis system for chiral nano-Pt-catalyzed asymmetric hydrogenation

Supplemental material, sj-pdf-3-chl-10.1177_17475198211039133 for A novel thermoregulated phase-transfer catalysis system for chiral nano-Pt-catalyzed asymmetric hydrogenation by Pu Chen and Yanhua Wang in Journal of Chemical Research</p

Insight into Tryptophan-Dependent Interaction Mechanisms between Peptides and Anthocyanins for Stability Enhancement

Anthocyanin degradation from alkaline or heat exposure limits its practical applications. Peptide-based microencapsulation can enhance anthocyanin’s physicochemical properties, such as pH and temperature stability. However, the diversity of amino acids makes investigating the complex interactions between peptides and anthocyanins experimentally challenging. In this study, we engineered four amphiphilic α helix peptides (C6W1, C6W2, C6W4, and C6W6) with varying tryptophan contents (one, two, four, and six) to explore tryptophan-dependent interaction mechanisms for improved anthocyanin stability. Molecular docking and molecular dynamics simulations showed that peptides with higher tryptophan content exhibit stronger interactions with anthocyanins, as evidenced by electrostatic forces, Lennard-Jones interactions, Gibbs free energy, and hydrogen bonds. Notably, the computational data aligns with our previous experimental findings on the coassembly and stability enhancement of peptides (C6W1, C6W4) and anthocyanins. This research offers valuable guidance on peptide design for enhanced microencapsulation of anthocyanins, potentially improving their physicochemical properties and broadening their applications

Metal-Free Synthesis of 2‑Fluoroalkylated Quinolines Using Polyfluoroalkanoic Acids as Direct Fluorine Sources

A novel [5 + 1] cyclization of 2-vinylanilines with polyfluoroalkanoic acids under catalyst- and additive-free conditions was successfully implemented. The approach directly employs very low-cost and readily available polyfluoroalkanoic acids as both C1 synthons and fluoroalkyl building blocks. This method provides concise access to diverse 2-fluoroalkylated (CF3, C2F5, C3F7, CF2H, CF2Cl, and CF2Br) quinolines in good yields with excellent functional group tolerance in high yield on a gram scale

XRD patterns of silicon particles washed with pure water and HCl at 10°C, 40°C and 60°C.

<p>XRD patterns of silicon particles washed with pure water and HCl at 10°C, 40°C and 60°C.</p

Description of the reaction mechanism.

<p>Description of the reaction mechanism.</p

XRD patterns of silicon particles prepared at different ratios of raw materials in glass flask (R is the value of Na2SiF6: Na molar ratio) after the samples were washed with pure water.

<p>XRD patterns of silicon particles prepared at different ratios of raw materials in glass flask (R is the value of Na2SiF6: Na molar ratio) after the samples were washed with pure water.</p

Graphical illustration for the sulfur-binding phage display screening.

<p>Blue dashed arrow: the expected pathway; Black solid arrow: the observed pathway.</p

Preparation of High Purity Crystalline Silicon by Electro-Catalytic Reduction of Sodium Hexafluorosilicate with Sodium below 180°C

<div><p>The growing field of silicon solar cells requires a substantial reduction in the cost of semiconductor grade silicon, which has been mainly produced by the rod-based Siemens method. Because silicon can react with almost all of the elements and form a number of alloys at high temperatures, it is highly desired to obtain high purity crystalline silicon at relatively low temperatures through low cost process. Here we report a fast, complete and inexpensive reduction method for converting sodium hexafluorosilicate into silicon at a relatively low reaction temperature (∼200°C). This temperature could be further decreased to less than 180°C in combination with an electrochemical approach. The residue sodium fluoride is dissolved away by pure water and hydrochloric acid solution in later purifying processes below 15°C. High purity silicon in particle form can be obtained. The relative simplicity of this method might lead to a low cost process in producing high purity silicon.</p></div