Results 81 to 90 of about 67,475 (292)

Computational design for enantioselective CO2 capture: asymmetric frustrated Lewis pairs in epoxide transformations

Beilstein Journal of Organic Chemistry
Carbon capture and utilisation (CCU) technologies offer a compelling strategy to mitigate rising atmospheric carbon dioxide levels. Despite extensive research on the CO2 insertion into epoxides to form cyclic carbonates, the stereochemical implications ...
Maxime Ferrer, Iñigo Iribarren, Tim Renningholtz, Ibon Alkorta, Cristina Trujillo   +4 more
doaj   +1 more source

5(S)-((3aR,4R,6aR)-2,2-Dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)-2-phenyl-4,5-dihydrooxazole

Molbank
5(S)-((3aR,4R,6aR)-2,2-Dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)-2-phenyl-4,5-dihydrooxazole was synthesized from isosorbide in a three-step sequence, with an overall yield of 46%.
Liliana Boiaryna, Stéphane Guillarme, Christine Saluzzo   +2 more
doaj   +1 more source

Hydrogen-Bonding Interactions in T-2 Toxin Studied Using Solution and Solid-State NMR

Toxins, 2011
The structure of T-2 toxin in the solid-state is limited to X-ray crystallographic studies, which lack sufficient resolution to provide direct evidence for hydrogen-bonding interactions.
Paul Hazendonk, François Eudes, Praveen Chaudhary, Nora A. Foroud, James T. Goettel, Tony Montina, Roxanne A. Shank   +6 more
doaj   +1 more source

(1S,1′S)-2,2′-(Benzylazanediyl)bis(1-((3aR,4R,6aR)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)ethan-1-ol)

Molbank
(1S,1′S)-2,2′-(Benzylazanediyl)bis(1-((3aR,4R,6aR)-2,2-dimethyltetrahydrofuro [3,4 d][1,3]dioxol-4-yl)ethan-1-ol), presenting a tertiary β-aminodiol moiety, was synthesized in 72% yield in a one-step reaction from an aminolysis of an isosorbide-derived ...
Mohammed Kadraoui, Stéphane Guillarme, Christine Saluzzo   +2 more
doaj   +1 more source

epoxides

, 2019
Citation: 'epoxides' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.E02172 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Comparison of Curing Efficacy of Halogen and LED Polymerization Lamps Using Composite Materials of Different Polymerization Mechanism

Česká Stomatologie a Praktické Zubní Lékařství, 2009
The objective was to compare efficacy of several types of halogen and LED polymerization lamps in curing restorative composite materials. Halogen lamps Heliolux DLX1 (Ivoclar Vivadent) and Megalux Fast Cure (MegaPhysik) and LED lamps DioPower (CMS Dental)
P. Bradna, J. Froněk, L. Comba, D. Houšová   +3 more
doaj  

Synthesis, Characterization and Antimicrobial Activity of New 1,2,3-Selenadiazoles

Molecules, 2008
The commercially available aromatic polyketones 1a-d were utilized for the synthesis of the multi-arm1,2,3-selenadiazole derivatives 3a-d. The preparation starts with the reaction between compounds 1a-d and p-toluenesulfonyl hydrazide to give the ...
Mousa Al-Smadi, Fouad Al-Momani
doaj   +1 more source

Predictive Model for Epoxy‐Amine Polymerizations at Decreased Tc Using Variable Frequency Microwaves

Journal of Applied Polymer Science, EarlyView.
Two‐way interaction of basicity and entropy. ABSTRACT This study presents a predictive model for the thermo‐mechanical properties of epoxy polymers cured with Variable Frequency Microwave (VFM) processing. The model is based on properties derived from the structural features of the epoxide and amine precursors.
R. L. Hubbard, Seok Hyun Lee, Casey Check   +2 more
wiley   +1 more source

Modification of the Solid Electrolyte Interphase on SiGr Electrodes by a Prelithiation Method Using Passivated Lithium Metal Powder

Batteries &Supercaps, EarlyView.
Prelithiation of SiGr electrodes by direct contact with passivated lithium metal. powder creates a solid electrolyte interphase (SEI) layer prior to cycling which is superior to the one conventional SEI layer produced during the formation cycles in nonprelithiated cells.
Ekin Esen, Iratxe de Meatza, Martin Schmuck, Mohsen Padervand, Martin Winter, Elie Paillard, Masoud Baghernejad   +6 more
wiley   +1 more source

Syntheses of Chiral 2-Oxazolines from Isosorbide Epoxide Derivative

Molbank
Two chiral monooxazolines were synthesized from a secondary amino alcohol, as a key intermediate, isolated in four steps from an isosorbide-derived epoxide.
Mohammed Kadraoui, Stéphane Guillarme, Christine Saluzzo   +2 more
doaj   +1 more source