An efficient Ir-catalyzed amidation of indoles with sulfonyl azides is disclosed, affording diverse C4-amidated indoles exclusively under mild conditions. In this protocol, a variety of indoles with commonly occurring functional groups such as formyl, acetyl, carboxyl, amide, and ester at the C3 position are well tolerated.
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http://dx.doi.org/10.1021/acs.orglett.7b00730 | DOI Listing |
Nanoscale Adv
December 2024
Department of Organic Chemistry, Faculty of Chemistry and Petroleum Sciences, Bu-Ali Sina University 6517838683 Hamadan Iran
Here, a straightforward design is employed to synthesize a nanocatalyst based on a carbon-activated modified metal-organic framework using the solvothermal method. This work presents a simple and practical approach for producing the activated carbon derived from the Thymus plant (ACT) modified with amine-functionalized isoreticular metal-organic framework-3 (IRMOF-3) to create an ACT@IRMOF-3 core-shell structure. Successful functionalization was confirmed through N adsorption isotherms, FT-IR, FE-SEM, TEM, EDS, elemental mapping, TGA, and XRD analysis.
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December 2024
Department of Physics & Chemistry, DGIST Daegu 42988 Korea
Metal-organic frameworks (MOFs), characterized by dynamic metal-ligand coordination bonding, have pivotal roles in catalysis, gas storage, and separation processes, owing to their open metal sites (OMSs). These sites, however, are frequently occupied by Lewis-base solvent molecules, necessitating activation to expose the OMSs for practical applications. Traditional thermal activation methods involve harsh conditions, risking structural integrity.
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December 2024
Materials Innovation Factory, Department of Chemistry, University of Liverpool 51 Oxford Street L7 3NY Liverpool UK
We report the synthesis, structural characterization and magnetic properties of Kcoronene, and demonstrate a computational screening workflow designed to accelerate the discovery of metal intercalated polycyclic aromatic hydrocarbon (PAH), a class of materials of interest following reports of superconductivity, but lacking demonstrated and understood characterised material compositions. Coronene is identified as a suitable PAH candidate from a library of PAHs for potassium intercalation by computational screening of their electronic structure and of the void space in their crystal structures, targeting LUMO similarity to C and the availability of suitable sites to accommodate inserted cations. Convex hull calculations with energies from crystal structure prediction based on ion insertion into the identified void space of coronene suggest that the = 3 composition in K coronene is stable at 0 K, reinforcing the suitability of coronone for experimental investigation.
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December 2024
Student Research Unit, School of Medicine, 21 September University, Sana'a, YEM.
Penetrating thoracic injuries, especially those affecting cardiac structures, are rare but can be life-threatening, requiring urgent medical care. Right atrium injuries pose significant risks, including rapid blood loss, cardiac tamponade, hemodynamic instability, and, subsequently, potential death. We report the case of a 24-year-old male patient with stab wounds leading to a right-sided chest penetration three hours prior to presentation.
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December 2024
Pain Medicine, Fondazione Paolo Procacci, Rome, ITA.
Systemic lupus erythematosus (SLE) is an autoimmune disease that more commonly affects African American people, although it is seen in people of all racial backgrounds. This condition is characterized by a dysregulated immune response resulting in widespread inflammation. Clinical manifestations caused by this inflammation include arthritis, anemia, cutaneous rashes, pleuritis, and nephritis.
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