Results 111 to 120 of about 36,481 (241)
Molecules, 2019 A method for the HMPA (hexamethylphosphoric triamide)-catalyzed metal-free transfer hydrogenation of pyridines has been developed. The functional group tolerance of the existing reaction conditions provides easy access to various piperidines with ester ...
Yun Fu, Jian Sun
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Unraveling C4 selectivity in the light-driven C–H fluoroalkylation of pyridines and quinolines [PDF]
Given the prevalence of pyridine motifs in FDA-approved drugs, selective fluoroalkylation of pyridines and quinolines is essential for preparing diverse bioisosteres.
Wooseok , Lee +2 more
core +1 more source
Dual Nickel/Photoredox‐Catalyzed Regio‐ and Enantioselective Alkenylation of Epoxides
Advanced Science, EarlyView.Ni/photoredox‐catalyzed stereoconvergent cross‐electrophile coupling of racemic epoxides with alkenyl bromides is described, affording β‐alkenyl products with up to 95% ee, excellent E‐selectivity, and complete regiocontrol. These versatile intermediates enable diverse chiral synthons; mechanistic studies suggest a halide ring‐opening followed by ...
Hongyan Lan +4 more
wiley +1 more source
Pyridines : from lab to production /
This book covers the synthesis and manufacture of pyridine and its derivatives. It evaluates the best methods for different scales of reaction and discusses practical tips (e.g.
Scriven, Eric F. V.,editor.
core
Advanced Science, EarlyView.Chemistry‐informed deep learning (DL) models based on the solvatochromic subgroup contribution (SSC) framework predict and interpret solvent‐dependent spectral shifts, revealing physically meaningful subgroup‐solvent interactions. ABSTRACT Solvent effects critically influence the photophysical and optical properties of molecules in solution, yet a ...
Jinyong Park +4 more
wiley +1 more source
New routes to functionalised pyridines [PDF]
A novel method of preparing substituted pyridines has been developed. This method uses readily available [3-ketoesters and amidrazone as starting materials.
Altuna-Urquijo, Marta
core
Advanced Science, EarlyView.Heteroatom precursor engineering serves as a molecular‐level strategy to tailor hydrazide monomer reactivity and diffusion kinetics, enabling controlled assembly of highly crystalline COF membranes with ultramicroporous channels. The nitrogen‐enriched nanochannels deliver high water/ion selectivity via simultaneous water transport acceleration and ion ...
Guishan Hu +8 more
wiley +1 more source
Chelation‐Driven Dual‐Interface Regulation for Long‐Life Aqueous Zn–I2 Batteries
Advanced Science, EarlyView.Zn2+–TPEN coordination generates TPEN‐derived coordination species (TCC) that contribute to the regulation of both electrode interfaces. At the Zn anode, it creates an interfacial environment with reduced water accessibility that suppresses HER and corrosion while promoting uniform deposition; at the I2 cathode, it captures polyiodide to inhibit ...
Dong Wook Kim +10 more
wiley +1 more source
Autonomous Solar Metallurgy for High‐Purity Gold Recovery from Electronic Waste
Advanced Science, EarlyView.Inspired by microbial strategies for metal uptake and biomineralization, defect‐rich copper sulfide (Cu31S16) functions as a solar metallurgical platform that unifies Au(III) capture, reduction, and self‐separation. The bioinspired design enables ultrafast gold recovery from electronic‐waste leachates and the spontaneous formation of millimeter‐scale ...
Chaopeng Liu +7 more
wiley +1 more source
ChemistryEuropeRegioselective synthesis is a crucial concept in organic chemistry, enabling the selective formation of different regioisomers from the same type of starting materials.
Eva Bednářová +7 more
doaj +1 more source