Results 51 to 60 of about 2,895 (193)

Next‐Generation Carbon‐Based Anodes for Alkali Metal‐Ion Batteries: Recent Progress on Biphenylene and Emerging Materials

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Recent advances in carbon‐based anodes for alkali metal‐ion batteries are critically reviewed, with emphasis on biphenylene and other emerging carbon allotropes. Biphenylene exhibits exceptional theoretical electrochemical properties beyond conventional graphite, highlighting its strong potential as a next‐generation anode material once scalable ...
Adewale Hammed Pasanaje, Nirpendra Singh
wiley   +1 more source

Conversion of Alcohols to Alkyl Chlorides Using the Bichloride Ionic Liquid [NEt3Me][Cl(HCl)n]

European Journal of Organic Chemistry, EarlyView.
The ionic liquid [NEt3Me][Cl(HCl)1.61] is presented as a controllable source of HCl for the effective transformation of a broad range of alcohols into alkyl chlorides. The process eliminates the need for continuous handling of HCl gas and enables a recyclable IL‐based catalyst system. The solvent‐free chlorination of alcohols using the bichloride‐based
Justus H. Peter, Piet de Jong, Merlin Kleoff, Gesa H. Dreyhsig, Jan‐H. Dickoff, Mohsen Adeli, Sebastian Riedel, C. Christoph Tzschucke, Rainer Haag   +8 more
wiley   +1 more source

Selective N‐Functionalization of Pyrazoles

European Journal of Organic Chemistry, EarlyView.
This review traces the evolution of regioselective N‐functionalization strategies for pyrazoles, a key class of nitrogen heterocycles widely used in medicinal chemistry. Due to rapid tautomerism, N‐functionalization often lacks selectivity, leading to poor and unpredictable regioisomeric outcomes.
Lucas Popek, Matthias Schrader, Christopher J. Teskey   +2 more
wiley   +1 more source

A chiral phosphoric acid catalyst for asymmetric construction of 1,3-dioxanes [PDF]

Chemical Communications, 2015
A chiral phosphoric acid catalyst enabled enantioselective 1,3-dioxane construction, useful for polyketide motif synthesis, via a hemiacetalization/intramolecular oxy-Michael addition cascade.
Matsumoto, Akira, Asano, Keisuke, Matsubara, Seijiro   +2 more
openaire   +2 more sources

Resolution Approaches Toward Enantiopure Planar Chiral 7‐bromo‐4‐hydroxy [2.2]paracyclophane

European Journal of Organic Chemistry, EarlyView.
This work describes access to both enantiomers of planar chiral 7‐bromo‐4‐hydroxy [2.2]paracyclophane through direct resolution of the racemate using an L‐isoleucine‐derived chiral auxiliary or through resolution of 4‐hydroxy [2.2]paracyclophane, followed by regioselective bromination.
Arthur Le Coz, Thomas Desclais, Fabien Le Cavelier, Jean‐François Lohier, Cyprien Lemouchi, Stéphane Perrio   +5 more
wiley   +1 more source

Kinetically Stable Boron‐Heteroatom Bonds

Angewandte Chemie, Volume 138, Issue 38, 14 September 2026.
This study investigates the kinetic stability of boron‐heteroatom bonds in N‐methyliminodiacetic acid (MIDA) boronates. The hemilabile nature of the ligand enables the synthesis of molecules that would otherwise be considered too hydrolytically labile. Depending on the structure, acid‐promoted migration of the boryl group was found to produce compounds
Alina Trofimova, Ben Zhen Huang, Harjeet S. Soor, Brandon White, Aleksandra Holownia, Yury Lebedev, Alan J. Lough, Travis Dudding, Andrei K. Yudin   +8 more
wiley   +2 more sources

Base‐Free Nickel‐Catalyzed Three‐Component Coupling of Aldehydes, Butadiene, and Malonate Derivatives: Toward Sustainable Synthesis of Highly Functionalized Molecules

European Journal of Organic Chemistry, EarlyView.
A nickel‐catalyzed three‐component reaction between arylaldehydes, butadiene, and malonates is developed yielding high functionalized homoallylic alcohols in a single step. No additional base is required and the reaction shows broad substrates compatibility with yields up to 96% and an exclusive selectivity toward the linear E‐isomer.
Anthony Saint Pol, Radhouan Maazaoui, Céline Delabre, Laëtitia Chausset‐Boissarie, Maël Penhoat, Isabelle Suisse, Aurélien Béthegnies, Mathieu Sauthier   +7 more
wiley   +1 more source

Bi(III)-Catalyzed Enantioselective Allylation Reactions of Ketimines

iScience, 2019
Summary: Chiral homoallylic amines not only are found in pharmaceutically relevant compounds but also serve as versatile building blocks for chemical synthesis.
Jie Wang, Qingxia Zhang, Biying Zhou, Chen Yang, Xin Li, Jin-Pei Cheng   +5 more
doaj   +1 more source

Synthesis of S‐Linked Glycoconjugates of Monosaccharides and Levoglucosenone Derivatives Through Photoinduced Thiol–Ene Reaction Mediated by 4CzIPN and Its Water Soluble Analog

European Journal of Organic Chemistry, EarlyView.
Visible‐light thiol–ene reaction mediated by 4CzIPN enables access to hydrolytically stable S‐linked glycoconjugates from levoglucosenone‐derived thiols (Y = 91% to quant. d.r. = up to >95:5) and conventional thio‐sugars (Y = 80% to quant. d.r. = up to >95:5).
Lorenzo Poletti, Francesco Riina, Daniele Ragno, Carmela De Risi, Alessandro Massi, Graziano Di Carmine   +5 more
wiley   +1 more source

Enantioselective Reductions Promoted by (Cyclopentadienone)iron Complexes

CHIMIA, 2017
(Cyclopentadienone)iron complexes have recently gained widespread interest as cheap metal-based pre-catalysts for the reduction of carbonyl compounds and imines, thanks to their air- and moisture-stability and easy synthesis/purification.
Umberto Piarulli, Sofia Vailati Fachini, Luca Pignataro   +2 more
doaj   +1 more source