Results 101 to 110 of about 12,336 (293)

Aziridination of a Single Carbon Atom in Alkenes via Energy Transfer Catalysis

Angewandte Chemie International Edition, EarlyView.
Contrary to traditional alkene aziridination via (formal) nitrene transfer, we herein report a strategy that achieves intermolecular aziridination of a single alkene carbon atom and installs an additional group at the other. Enabled by metal‐free energy transfer (EnT) catalysis, alkenyl boronates and silanes are transformed into reactive intermediates ...
Fritz Paulus, Corinna Heusel, Felix H. Wessels, Bünyamin Sikora, Maik G. Niedziella, Kilian van der Beck, Constantin G. Daniliuc, Frank Glorius   +7 more
wiley   +1 more source

Spatial structure of α-halogen-substituted sulfones

, 2020
1. Conformational equilibrium between the gauche- and trans-forms is attained in α-halogenated sulfones with the gauche-form predominating. 2. The position of the aryl radical in α-haloaryl sulfones is close to interfering with.
Vereshchagin A., Lyakisheva L., Bumenko G.   +2 more
core  

Construction of Lean Coal Molecular Structure Model Based on Spectroscopic Characterization

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The chemical structure of coal exerts a profound influence on its properties and utilization pathways. A comprehensive analysis of coal's molecular structure is crucial for mitigating environmental pollution arising from coal combustion and improving the efficiency of coal utilization.
Song Liu, Hao Xia, Tao Ge, Yaling Bai, Shoulan Wang, Yunfang Liu   +5 more
wiley   +1 more source

A novel thermal and acidic approach to γ-keto sulfones synthesis from chalcones and sulfonyl hydrazide

Results in Chemistry
In this paper, a new synthetic method for the synthesis of γ-keto sulfones via the reaction of chalcones with sulfonyl hydrazide under thermal and acidic conditions was investigated.
Bahman Kafshgari, Sakineh Asghari, Ghasem Firouzzadeh Pasha, Hamidreza Younesi   +3 more
doaj   +1 more source

An efficient Cu-catalyzed microwave-assisted synthesis of diaryl sulfones

, 2017
An efficient and microwave-assisted simple protocol for the synthesis of symmetrical/asymmetrical diaryl sulfones through the Cu(II)-catalyzed reaction of sodium salt of sulfinic acid with aryl boronic acid has been described.
Ganesh C. Nandi (3364313)
core   +1 more source

Comparative Study of High Voltage Spinel∥Lithium Titanate Lithium‐ion Batteries in Ethylene Carbonate Free Electrolytes

Batteries &Supercaps, Volume 8, Issue 3, March 2025.
FEC and sulfone‐based co‐solvents are investigated as EC‐free electrolytes for LNMO∥LTO cells. FEC‐containing electrolytes demonstrate enhanced electrochemical stability by stabilizing the CEI and SEI layers, mitigating transition metal migration. Conversely, sulfone electrolytes form thinner CEIs and thick, sulfur‐rich SEIs, which are less effective ...
Killian Stokes‐Rodriguez, Kaushik Jayasayee, Sidsel M. Hanetho, Jannicke Kvello, Peter P. Molesworth, Øystein Dahl, Nils Peter Wagner   +6 more
wiley   +1 more source

Plasma Exosome Metabolomics Reveal Stage‐Specific Alterations in Elderly Women With Premetabolic and Metabolic Syndrome

Chronic Diseases and Translational Medicine, EarlyView.
Shared differential metabolites identified across the three sample groups. (A) Venn diagram of differential metabolites between the two comparison groups; Based on the detected levels of these overlapping differential metabolites, (B) d‐Arabitol, (C) Triclosan, (D) Iloprost, (E) Tetracosanoic acid, and (F) Omeprazole sulfone. Box plots were constructed
Mengtao Qian, Dan Nie, Qianyi Gao, Xingbo Mo, Huan Zhang   +4 more
wiley   +1 more source

Engineering Biochar‐Derived Functional Materials for High‐Performance Supercapacitors: Design Principles, Mechanisms, and Scalable Strategies

Carbon Energy, EarlyView.
ABSTRACT Biochar has emerged as a useful and adaptable source of carbon for supercapacitor electrodes. Its value comes from the way biomass chemistry, thermal conversion, and activation conditions shape the resulting pore network, surface groups, and degree of carbon ordering.
Soumen Mandal, Avinash C. Mendhe, Mayna Roy, Neha S. Barse, Taejoon Park, Han‐Seung Lee, Haigun Lee   +6 more
wiley   +1 more source

A Short Step Conversion of Alkynyl Propargyl Sulfones into Six-Membered Cyclic β-Ketosulfones an Amine-Induced Novel Ring Closure

Natural Product Communications, 2018
Alkynyl propargyl sulfones underwent secondary amine-induced cyclization to give six-membered cyclic enaminosulfones, and the products were subjected to acidic hydrolysis to afford the corresponding cyclic β-ketosulfones in high yields.
Md. Ashraful Alam, Kazuaki Shimada, Hironobu Kamoto, Kasumi Shingo, Toshinobu Korenaga   +4 more
doaj   +1 more source

Efficient Conversion of Sulfones into β-Keto Sulfones by N-Acylbenzotriazoles^§

, 2016
Acyclic sulfones 4a−f and alicyclic sulfone 7 react with readily available N-acylbenzotriazoles 3a−g (derived from aliphatic, aromatic, and heteroaromatic carboxylic acids) to provide the corresponding β-keto sulfones 5a−n and 8a−c, respectively, in good
Ashraf A. A. Abdel-Fattah (2429563), Alan R. Katritzky (455231), Mingyi Wang (91634)   +2 more
core   +1 more source