Results 101 to 110 of about 12,676 (308)

Zirconium-Catalyzed Kinetic Resolution of Cyclic Allylic Ethers. An Enantioselective Route to Unsaturated Medium Ring Systems

open access: yes, 2016
Zirconium-Catalyzed Kinetic Resolution of Cyclic Allylic Ethers.
Michael S. Visser (2996298)   +2 more
core   +2 more sources

Directional Transformation of Native Holocellulose into Long-Chain Ether Fuel Precursors over Metal Oxides

open access: yesEnergies
Incomplete diesel combustion emits soot and CO. The use of biomass-derived, oxygen-containing diesel additives has been proposed as an effective mitigation strategy.
Yuan Liu   +4 more
doaj   +1 more source

Thermochemistry of solution, solvation and hydrogen bonding of linear and cyclic ethers in solvents

open access: yes, 2021
In work a thermochemistry of solution, solvation and hydrogen bond formation of linear (diethyl ether and diglyme) and cyclic ethers (1,4-dioxane, 12-crown-4, 15-crown-5 and 18-crown-6) in proton acceptor and proton donor solvents were studied.
Semenov K.N.   +6 more
core  

Phase‐Pure and Size‐Tunable Tin Halide Perovskite Quantum Dots

open access: yesAdvanced Materials, EarlyView.
A trioctylphosphine oxide modulated protocol allows for the synthesis and study of the optical properties of a broad library of tin halide perovskite quantum dots across multiple A‐ and X‐site compositions with precise size tuning while eliminating unwanted 2D phases.
Ole F. Dressler   +7 more
wiley   +1 more source

Fractionation of Bio-Oil from Flash Pyrolysis

open access: yesChemical Engineering Transactions, 2014
Biomass is the world's largest source of renewable energy and can replace part of the fossil sources. Main components of biomass are cellulose, hemicelluloses and lignin, which are compounds of C, H and O and represent high energy content. Fast pyrolysis
B. Vasilkovová   +6 more
doaj   +1 more source

Weakly‐Coordinating Non‐Fluorinated Diluents for Local High‐Concentration Electrolytes in Advanced Lithium Metal Batteries

open access: yesAdvanced Materials, EarlyView.
This perspective critically evaluates non‐fluorinated diluents in local high‐concentration electrolytes, categorizing their solvation behavior, interfacial mechanisms, and sustainability potential to guide future electrolyte design for lithium metal batteries.
Yin Cui   +8 more
wiley   +1 more source

Metal-Free Synthesis of N‑Aryl-Substituted Azacycles from Cyclic Ethers Using POCl3

open access: yes, 2019
A facile method for the synthesis of N-aryl-substituted azacycles from arylamines and cyclic ethers has been developed. In this study, arylamines were treated with cyclic ethers in the presence of POCl3 and DBU to provide five- and six-membered azacycles.
Hee-Kwon Kim (1823215)   +5 more
core   +1 more source

Advancing Lithium–Oxygen Batteries: Pioneering Cathode Catalyst Innovation and Artificial Intelligence‐Driven Design Paradigms

open access: yesAdvanced Materials, EarlyView.
This review summarizes the principles and challenges of nonaqueous lithium‐oxygen batteries and recent advances in cathode catalysts, including carbon‐based materials, metals, oxides, sulfides, nitrides, carbides, and redox mediators. It highlights emerging design strategies and artificial intelligence‐driven approaches, emphasizing data‐assisted ...
Yuqing Yao   +8 more
wiley   +1 more source

Hydrodynamic characterization of the redox chemistry of crown-encapsulated uranyl complexes

open access: yesFrontiers in Nuclear Engineering
The redox properties of actinide-containing species strongly influence their reactivity, speciation, and interfacial behavior, but the experimental quantification of the electrochemical characteristics of molecular actinide complexes in nonaqueous media ...
Alexander C. Ervin, James D. Blakemore
doaj   +1 more source

Enantioselective Synthesis of α,β,α‘-Trisubstituted Cyclic Ethers

open access: yes, 2016
A synthetic strategy for the preparation of trisusbstituted cyclic ethers is presented, in which the stereochemistry at the carbon atoms adjacent to the oxygen of the ether was controlled by means of a hetero Diels−Alder reaction between a monoactivated ...
J. Antonio Palenzuela (2418238)   +3 more
core   +1 more source

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