Results 61 to 70 of about 4,019 (234)

Studies on the Asymmetric Synthesis of cis-5-Alkyl-4-hydroxy-2–pyrrolidinones and Studies on the New Method for Reduction of Amide [PDF]

, 2009
本论文包含以下各自独立的三方面内容：1，顺式-4-羟基-5-烷基-2-吡咯烷酮4的不对称合成研究；2，CytosporoneB类单羟基衍生物的合成；3，酰胺还原新方法研究。 一、顺式-4-羟基-5-烷基-2-吡咯烷酮4的不对称合成研究： 很多天然产物中含有顺式-4-羟基-5-烷基-2-吡咯烷酮亚结构，它们大多数具有很好的生理活性。此结构开环后得到的γ-氨基-β-羟基酸是一类特种氨基酸，它们是许多具有重要生理活性天然产物的结构单元。因此，关于此类化合物的研究一直吸引着人们的兴趣 ...
向少华
core  

Commercializable Fluorine‐Doped Porous Carbon Toward Advanced 4.5 V‐Class Lithium‐Ion Capacitors

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The commercializable F‐doped porous carbon material with versatile merits is first designed and exhibits dual enhancement in specific capacitances and upper cutoff potentials toward 4.5 V‐class lithium‐ion capacitors and beyond as a next‐generation positive material. Low specific capacitances and/or limited working potential (≤4.5 V).
Sen Liu, Minyu Jia, Fulu Chu, Hao Jiang, Jiale Jia, Jinfeng Sun, Yang Liu, Linrui Hou, Changzhou Yuan   +8 more
wiley   +1 more source

Harnessing High Entropy Sulfide (HES) as a Robust Electrocatalyst for Long‐Term Cycling of Lithium‐Sulfur Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work highlights the incorporation of titanium and other metal elements into the sulfide structure, forming HES (i.e., GS‐3) that facilitates efficient catalytic conversion and enhances the cycling performance of Li‐S batteries. The pursuit of highly efficient electrocatalysts is of utmost significance in the relentless drive to enhance the ...
Hassan Raza, Junye Cheng, Jia Xu, Liang An, Jingwei Wang, Wanli Nie, Guangping Zheng, Guohua Chen   +7 more
wiley   +1 more source

Discovery of (S)-3′-hydroxyblebbistatin and (S)-3′-aminoblebbistatin : polar myosin II inhibitors with superior research tool properties [PDF]

, 2017
In search of myosin II inhibitors with superior research tool properties, a chemical optimization campaign of the blebbistatin scaffold was conducted in this paper. (S)-Blebbistatin is the best known small-molecule inhibitor of myosin II ATPase activity.
Bracke, Marc, De Wever, Olivier, Roman, Bart, Stevens, Christian, Van Deun, Rik, Van Hecke, Kristof, Verhasselt, Sigrid   +6 more
core   +1 more source

Comparison of the Effects of Brominated Perylenediimide and Perylene Tetraester Modified G‐C₃N₄ S‐Scheme Nanocomposites on the Photocatalytic Degradation of Anionic and Cationic Dyes and Herbicide

Global Challenges, EarlyView.
Exfoliated g‐C₃N₄ sensitized with brominated perylene dyes (dBrPDI and dBrPTE) significantly enhances photocatalytic degradation of RhB and methyl orange via improved charge separation and light absorption. Performance varies by pollutant type, highlighting that photocatalytic efficiency is strongly influenced by dye–pollutant interactions in aqueous ...
Erkan Aksoy, Emre Alp
wiley   +1 more source

Singlet oxygen-mediated one-pot chemoselective peptide–peptide ligation [PDF]

, 2017
We here describe a furan oxidation based site-specific chemical ligation approach using unprotected peptide segments. This approach involves two steps: after photooxidation of a furan-containing peptide, ligation is achieved by reaction of the unmasked ...
Antonatou, Eirini, Madder, Annemieke, Verleysen, Yentl   +2 more
core   +2 more sources

CytroCell@PIL: A New Citrus Nanocellulose‐Polymeric Ionic Liquid Composite for Enhanced Anion Exchange Membranes

Nano Select, EarlyView.
CytroCell@PIL, a composite membrane obtained combining the submicron fibers of CytroCell cellulose at 1 wt% load with polymerizable ionic liquid (triethyl(4‐vinylbenzyl)phosphonium tetrafluoroborate), shows high stability in concentrated alkaline solution, good ionic conductivity, and enhanced mechanical strength.
Enrica Fontananova, Rosaria Ciriminna, Daria Talarico, Francesco Galiano, Alberto Figoli, Gianluca Di Profio, Raffaella Mancuso, Bartolo Gabriele, Christian S. Pomelli, Lorenzo Guazzelli, Giuseppe Angellotti, Giovanna Li Petri, Francesco Meneguzzo, Mario Pagliaro   +13 more
wiley   +1 more source

A steric tethering approach enables palladium-catalysed C-H activation of primary amino alcohols. [PDF]

, 2015
Aliphatic primary amines are a class of chemical feedstock essential to the synthesis of higher-order nitrogen-containing molecules, commonly found in biologically active compounds and pharmaceutical agents.
A McNally, AD Ryabov, AJ Hickman, Benjamin Haffemayer, C Jia, CR Strader, D Garcia-Cuadrado, D-H Wang, DA Colby, Daniel Pla, EM Ferreira, EM Simmons, F Lovering, G He, GA Reichard, GT Kunkel, HML Davies, HML Davies, IAI Mkhalid, J Dupont, J Wencel-Delord, J Yamaguchi, J Yuan, J-Y Cho, Jonas Calleja, K Bera, K Godula, KJ Stowers, KM Engle, KSL Chan, L Ackermann, LV Desai, M Darabantu, M Wasa, M Wasa, Matthew J. Gaunt, MH Emmert, NR Deprez, NY Kozitsyna, O Daugulis, R Giri, R Giri, R Jazzar, S Gorelsky, S Li, S-Y Zhang, T Ishiyama, Timothy W. Gorman, TJ Donohoe, TW Lyons, VG Zaitsev, Victoriano Domingo, Y-H Zhang   +52 more
core   +1 more source

Polynorbornene Brush Polymers With Naphthalene Diimide‐Bithiophene Motifs for Organic Batteries

Journal of Polymer Science, EarlyView.
Short oligomers of naphthalene diimide (NDI) and bithiophene (T2) are incorporated into polynorbornene brushes for organic batteries. In Li half cells, P(Nor‐T2NDIT2) is soluble in the electrolyte resulting in a loss of capacity during early cycles. Electrolyte insoluble polymers are obtained by crosslinking (P(Nor‐T2DNIT2‐10X)), or by adding a further
Rukiya Matsidik, Dipesh Ashokbhai Suhagiya, Milan Harjibhai Goti, Michael Sommer   +3 more
wiley   +1 more source

Direct Integration of Spent LiMn2O4 with High Voltage Aqueous Zinc‐Manganese Redox Flow Batteries as a Practical Upcycling Process

Small, EarlyView.
To address the high energy consumption and complex processes of conventional battery recycling, a novel upcycling strategy is proposed, where spent cathode materials undergo filtration and electrochemical reduction reactions using carbon felt (CF) electrodes in redox flow batteries (RFBs).
Duho Han, Hyeokjun Jang, Jinyeong Choi, Jihan Park, Seongmin Kim, Seongsoo Han, Wonjae Lee, Jin Hong Lee, Pilgun Oh, Yosep Han, Minjoon Park   +10 more
wiley   +1 more source