Results 41 to 50 of about 4,019 (234)

Asymmetric Addition and Cycloaddition Reactions with Ylidene-Five-Membered Heterocycles [PDF]

, 2021
Five-membered heterocycles bearing an exocyclic double bond have been successfully used as substrates in asymmetric addition and cycloaddition reactions.
Blay Llinares, Gonzalo, Miguélez, Rubén, Pedro, José Ramón, Sanz Marco, Amparo, Torán, Ricardo, Vila Descals, Carlos   +5 more
core   +1 more source

Ultra‐low LOD H2O2 Sensor Based on Synergistic Nernst Potential Effect

Advanced Science, EarlyView.
Due to the synergistic effect of ENernst,H2O2${E}_{\mathrm{Nernst},\ {\mathrm{H}}_{2}{\mathrm{O}}_{2}}$ and ENernst,H+${E}_{\mathrm{Nernst},\ {\mathrm{H}}^{+}}$, the proposed sensors in this study can achieve ultralow H2O2 detection limit as low as 1.8 × 10−12 M based on the stacked PEDOT: BTB/PEDOT: PSS semiconducting layer.
Zhaoqun Wang, Wen Gao, Xiaorong Niu, Yuhang Liu, Zichen Jin, Fan Zhang, Zhengdong Cheng, Xiaoning Jiang, Wendong Zhang, Ting Wang, Jianlong Ji, Xiaojie Chai, Shengbo Sang   +12 more
wiley   +1 more source

Dynamic Cycling of Ultrathin Li Metal Anode via Electrode–Electrolyte Interphase Comprising Lithiophilic Ag and Abundant LiF under Carbonate‐Based Electrolyte

Advanced Energy Materials, EarlyView.
The silver trifluoromethanesulfonate (AgTFMS) simultaneously forms metallic Ag and abundant LiF on the Li metal surface after dissolution in carbonate‐based electrolyte, whereas lithium trifluoromethanesulfonate (LiTFMS) only generates LiF‐rich solid‐electrolyte interphase (SEI).
Jong Hun Sung, Un Hwan Lee, Jiwon Lee, Bo Yu, Muhammad Irfansyah Maulana, Seung‐Tae Hong, Hyun Deog Yoo, Joonhee Kang, Jong‐Sung Yu   +8 more
wiley   +1 more source

Palladium-Catalyzed Construction of Quaternary Stereocenters by Enantioselective Arylation of γ-Lactams with Aryl Chlorides and Bromides [PDF]

, 2019
Herein, we report the first Pd‐catalyzed enantioselective arylation of α‐substituted γ‐lactams. Two sets of conditions were developed for this transformation, allowing for the use of either aryl chlorides or bromides as electrophiles.
Bachman, Shoshana, Geibel, Irina, Hayashi, Masaki, Jette, Carina I., Morgan, Jeremy B., Sakurai, Shunya, Shimizu, Hideki, Stoltz, Brian M.   +7 more
core   +1 more source

ChemInform Abstract: Functionalized Pyrrolidinones Derived from (S)‐Pyroglutamic Acid.

ChemInform, 1996
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Beard, M, Bailey, J, Cherry, D, Moloney, M, Shim, S, Statham, K, Bamford, M, Lamont, R   +7 more
openaire   +4 more sources

Thermally Cured Sulfonated para‐PBI as Ion Solvating Membrane for Use in Water Electrolysis

Advanced Energy Materials, EarlyView.
The cMS‐PBI membrane is designed to be free of the known breaking points which limit the lifetime of membranes in alkaline electrolysis systems. As supported by high conductivity and 6 months ex situ stability test, the cMS‐PBI ion solvating membrane can substitute anion exchange membranes and thus can reduce the cost of green hydrogen by increasing ...
Asridin Dayan, DongHyun Lee, Kobra Azizi, Lars Nilausen Cleemann, Won‐Chul Cho, Dirk Henkensmeier   +5 more
wiley   +1 more source

Pramanicin analog induces apoptosis in human colon cancer cells: critical roles for Bcl-2, Bim, and p38 MAPK signaling [PDF]

, 2013
Pramanicin (PMC) is an antifungal agent that was previously demonstrated to exhibit antiangiogenic and anticancer properties in a few in vitro studies. We initially screened a number of PMC analogs for their cytotoxic effects on HCT116 human colon cancer
Başağa, Hüveyda, Bodur, Çağrı, Harrison, Paul, Isimjan, Tayirjan T., Karslı, Gizem, Kütük, Özgür   +5 more
core   +1 more source

Non-noble metal-catalysed carbonylative transformations [PDF]

, 2018
The dissertation is mainly concerned with non-noble metal-catalyzed carbonylative reactions. More specifically, copper, iron and manganese catalysed carbonylation reactions are presented. In all the above mentioned areas systematic catalyst optimization
Li, Yahui (gnd: 1161758267)
core   +1 more source

Photocatalytic Generation of a Ground‐State Electron Donor Through Water Activation

Angewandte Chemie International Edition, EarlyView.
This study presents catalytically generated phosphine oxide radical anions, derived from commercial phosphines and water as potent single‐electron reductants capable of reducing electron‐rich aryl chlorides at potentials as low as −3.3 V (vs. SCE). Cyclic voltammetry studies and DFT calculations offer insights into these P‐based ground‐state electron ...
Maxim‐Aleksa Wiethoff, Lena Lezius, Armido Studer   +2 more
wiley   +1 more source

The influence of Ag2O/NbO2 nanocomposites on the optical properties of PVA/PVP lend in biomedical applications

Journal of the Pakistan Medical Association
Objective: To study the optical properties of nanocomposites as well as antibacterial activity. Method: The experimental study was conducted at the University of Babylon, College of Science and College of Education for Pure Sciences, Babylon, Iraq, from
Sroor Fadhil Obaid, Raheem Kadhim
doaj   +1 more source