Results 11 to 20 of about 2,994 (192)

Co(II) complexes with 2-pyrrolidinone [PDF]

Canadian Journal of Chemistry, 1969
For the known complexes CoL3X2 (X = Cl, Br, and L = 2-pyrrolidinone) a more detailed infrared study was made. Together with the electronic spectra this study indicates dissociation of CoL2X3 into CoL2X2 + L in chloroform and acetone solution. The conductivity measurements and the molecular weight determinations also support dissociation.
O. Bohunovsky, Shailja Jain, R. Rivest
openalex   +2 more sources

Optimization of pyrrolidinone based HIV protease inhibitors

Bioorganic & Medicinal Chemistry Letters, 2004
Optimization of P1-substituted pyrrolidinone based HIV protease inhibitors has yielded analogs with very potent antiviral activity.
Ronald G. Sherrill, C. Webster Andrews, William J. Bock, Ronda G. Davis‐Ward, Eric S. Furfine, Richard Hazen, Randy D. Rutkowske, Andrew Spaltenstein, Lois L. Wright   +8 more
openalex   +3 more sources

Synthesis of Spiroisoxazolines by 1,3-Dipolar Cycloaddition

Molecules, 1997
The cycloaddition of the chiral nitrile oxide 1 to 1-R-substituted 3,3-methylene-5,5-dimethyl-2-pyrrolidinones 2 (where R is H, n-butyl-, 1,1-dimethylethoxycarbonyl-, 1-methylethenyl- and acetyl-) proceeds regioselectively under the formation of ...
Peter Ertl, Vladimír Ondrus, Lubor Fisera, Peter Micuch   +3 more
doaj   +1 more source

Microwave-assisted synthesis of pyrrolidinone derivatives using 1,1’-butylenebis(3-sulfo-3H-imidazol-1-ium) chloride in ethylene glycol

Green Processing and Synthesis, 2019
The energy efficiency of the microwave-assisted synthesis of pyrrolidinones was demonstrated using catalytic loading of 1,1’-butylene-bis(3-sulfo-3H-imidazol-1-ium) chloride as a sulfonic acid functionalized ionic liquid in ethylene glycol as green ...
Khaligh Nader Ghaffari, Mihankhah Taraneh, Johan Mohd Rafie, Titinchi Salam J.J.   +3 more
doaj   +1 more source

Ion‐Regulating Membranes with Surface‐Enriched Charge Networks Enabling Stable Zinc‐Manganese Flow Batteries

Advanced Materials, EarlyView.
An ion‐regulating membrane is designed with a surface‐concentrated positively‐charged Zn2⁺ crosslinked network for zinc‐manganese flow batteries. The membrane effectively mitigates proton crossover and regulates zinc ion distribution to avoid dendrites, thus significantly improving areal capacity and prolonging the lifespan with a record accumulated ...
Jine Wu, Jiafeng Lei, Yi‐Chun Lu
wiley   +1 more source

A concise approach to functionalised, homochiral pyrrolidinones

Tetrahedron: Asymmetry, 1995
Abstract Acylation of O , N -acetal 1 gives excellent yields of the C-7 substituted products 2a,b . Alkylation of 2a under mild conditions gives high yields of the exo- 3 and endo- 4 substituted products in varying ratios, depending on the alkylating agent.
Bamford, M, Beard, M, Cherry, D, Moloney, M   +3 more
openaire   +1 more source

In Situ Lipoprotein‐seeking Dye for in Vivo Real‐Time Imaging of Lipid Dysregulation Diseases

Advanced Science, EarlyView.
This study develops lipoprotein‐seeking NIR‐II dyes that specifically bind circulating lipoproteins. These dyes form ultra‐stable complexes with endogenous lipoprotein, enabling real‐time, high‐contrast imaging of fatty liver and atherosclerotic plaques. Tunable binding kinetics allow customized imaging windows.
Yijing Du, Zetao Dang, Baofeng Xu, Jiajun Xu, Dan Wang, Yuewei Zhang, Shoujun Zhu   +6 more
wiley   +1 more source

Leveraging Reaction Heterogeneity in Bimodal Cathodes to Enhance Longevity of SiO/Graphite | NCM Full cells

Advanced Science, EarlyView.
A bimodal cathode composed of single‐ and polycrystalline NCM particles induces end‐of‐discharge overpotential rise via reaction heterogeneity, effectively regulating the depth of discharge of SiO in SiO/graphite anodes. This design suppresses mechanical degradation of SiO and enables long‐term cycling stability without compromising the energy density ...
Hyoyeong Kim, Chan Myeong Kim, Sangheum Jo, Seonghun Lee, Soon Ju Choi, Hyun Joo Park, Hyein Yu, Daesoo Kim, Kyungjun Kim, Tae Joo Shin, Sang‐Min Lee   +10 more
wiley   +1 more source

Ultrahigh High‐temperature Capacitive Energy Storage Via Proton Irradiation

Advanced Science, EarlyView.
Proton irradiation concurrently induces enhanced dielectric constant and breakdown field in aromatic polymers with ether bonds, which enables an ultrahigh discharged energy density of 6.9 J cm−3 at above the efficiency of 95% at 150 °C, exceeding current dielectric polymers and nanocomposites.
Chenyi Li, Hanxiao Gao, Yutie Gong, Yen‐Ting Lin, Yuquan Liu, Yuanqi Wang, Lan Chen, Hangyao Wu, Ling Cheng, Yang Li, Yang Liu, Huamin Zhou   +11 more
wiley   +1 more source

Surface Functionalization of Si Nanoparticles by Hydrosilylation: Access to High‐Performance Si Anodes for Li‐Ion Batteries

Advanced Energy and Sustainability Research, EarlyView.
Surface‐functionalized SiNPs are synthesized by a simple and scalable hydrosilylation method using 4‐vinylpyridine (4VP), 1‐vinyl‐2‐pyrrolidinone (1V2P), and acrylic acid (AA). The Si‐4VP‐based Li‐ion cells achieved a promising long life of 300 cycles, retaining 60% of the initial capacity (2375 mAh g−1).
Sadananda Muduli, Jesús M. Blázquez‐Moreno, Martin Frey, Michael R. Buchmeiser   +3 more
wiley   +1 more source