Results 31 to 40 of about 2,072 (186)

An efficient [3+2] annulation for the asymmetric synthesis of densely-functionalized pyrrolidinones and γ-butenolides

, 2020
Disclosed here is a new [3+2] annulation of siloxy alkynes that provides robust access to highly enantioenriched, densely-substituted pyrrolidinones and γ-butenolides, whose direct synthesis remains challenging.
Sun, Song, Sun, Jianwei, Zhao, Wanxiang, Qian, Hui   +3 more
core   +1 more source

Macroscopic Convective Fluid Flows Arising From Binding of Ions and Small Molecules to Proteins

Small, EarlyView.
The interaction of ions or small molecules with proteins causes convective flows due to the displacement of water from the hydration shell. As shown, the replacement of the nickel ion removed from urease by EDTA pre‐treatment results in binding‐induced convective fluid flow.
Shanid Babu Shrestha, Jiaqi Song, Ali Heydari, Igor S. Aranson, Ayusman Sen   +4 more
wiley   +1 more source

Regio- and diastereoselective synthesis of 5-trans-substituted and 5,5-disubstituted 2-pyrrolidinones derived from (S)-malic acid

, 2015
5-trans-Substituted 2-pyrrolidinones 6a, 6c and 6d and 5,5-disubstituted 2-pyrrolidinones 6e-k were regio- and diastereoselectively formed through the addition of organolithium species to imides 1a,b derived from malic acid, followed by addition of ...
Pilli, RA, Schuch, CM
core   +1 more source

Regulating Lithium Plating Behavior in Lithium‐Metal Batteries via Molten‐Lithium Processing With Inorganic Additives

Small, EarlyView.
A SGI Li–Zn–F is formed by introducing ZnF2 into molten lithium, generating a LiZn alloy layer beneath a LiF‐rich upper layer. The lithiophilic LiZn alloy layer and robust LiF layer synergistically regulate Li+ flux and suppress dendritic growth, enabling uniform Li deposition and long‐term stable cycling in lithium metal batteries.
Chaerim Kim, Jinyeong Choi, Chaerin Jung, Jihyeon Kang, Hyeongbeen Kim, Pilgun Oh, Jin Hong Lee, Sung Hyun Kwon, Minjoon Park   +8 more
wiley   +1 more source

Detection of a Target Nucleic Acid by Ligation‐Assisted Fluorescence Enhancement of a Peptide Nucleic Acid (PNA) Twin Probe via Disulfide Binding

Biopolymers, Volume 117, Issue 4, July 2026.
Target‐induced disulfide ligation of PNA twin probes promotes pyrene excimer formation for nucleic acid detection. ABSTRACT The development of methods for detecting specific nucleic acids is important for early diagnosis and treatment of diseases at the genetic level.
Yutaka Ouchi, Koki Ishii, Yumiko Sato, Yoshitane Imai, Hideo Matsui, Takashi Ohtsuki, Yoshiyuki Hakata, Hajime Shigeto, Shohei Yamamura, Mizuki Kitamatsu   +9 more
wiley   +1 more source

The synthesis of multi-substituted pyrrolidinones via a direct [3 + 2] cycloaddition of azaoxyallyl cations with aromatic ethylenes

, 2018
A novel [3 + 2] cycloaddition reaction of azaoxyallyl cations and aromatic ethylenes has been developed to afford multi-substituted pyrrolidinones in moderate to good yields.
Shaohua Wang, Jinghong Pu, Yixin Zhang, Haojie Ma, Guosheng Huang, Xingxing Liu, Xinfeng Cui, Zhenzhen Zhan   +7 more
core   +1 more source

Monodisperse High‐Entropy Metal Oxide Nanoparticles Encapsulated Within 2D Porous Carbon Sheets for Enhanced Catalytic Activity in Lithium–Sulfur Batteries

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 4, July 2026.
This study synthesizes monodisperse oxide nanoparticles with abundant ionic vacancies encapsulated in 2D porous carbon sheets via pyrolysis of a high‐entropy precursor, constructing a cross‐scale catalytic interface. It enables Li‐S batteries with a high capacity of 761 mAh g−1 at 3 C and retains 80.44% capacity after 1000 cycles at 1 C.
Zeyu Xue, Yuan Gao, Xixi Liu, Fangquan Wang, Yu‐Lun Chueh, Chunming Gao, Zexiang Chen, Caijun Zheng, Huifang Lv, Hualiang Wei, Zhiyu Zhou, Yan Wang, Zheng Liu, Yang Zhao, Ruxiang Xu   +14 more
wiley   +1 more source

Interactions of Plant Protein and Natural Colorant: A Structural and Functional Relationship of Broccoli Protein and Marigold Color Compounds

Food Frontiers, Volume 7, Issue 4, July 2026.
Graphical representation of the interactions of the structural and functional relationships of broccoli flower protein (BFP) and marigold color compounds (MCC). This research examines BFP–MCC interactions of extracted marigold color, chemical composition, and functional attributes.
Fidele Benimana, Kentaro Kawata, Anand Mohan   +2 more
wiley   +1 more source

Catalytic Asymmetric Intramolecular Aminopalladation:  Enantioselective Synthesis of Vinyl-Substituted 2-Oxazolidinones, 2-Imidazolidinones, and 2-Pyrrolidinones

, 2016
A new catalytic asymmetric synthesis of five-membered nitrogen heterocycles is reported. This synthesis employs ferrocenyloxazoline palladacycles (FOP trifluoroacetate catalysts) 2 and 4 and proceeds by a catalytic cycle involving Pd(II) intermediates ...
Larry E. Overman (1264596), Travis P. Remarchuk (2667118)   +1 more
core   +2 more sources

2-Pyrrolidinones and 3-Pyrrolin-2-ones: A Study on the Chemical Reactivity of These Structural Moieties [PDF]

, 2011
The chemical reactivity of 2-pyrrolidinones and 3-pyrrolin-2-ones was evaluated in reactions of addition, nucleophilic substitution, elimination, and reduction as well as the protection of the lactamic nitrogen.
José C. F. Alves
core   +1 more source