Results 21 to 30 of about 2,463 (211)
Nature Communications, 2021 Chiral-at-cage o-carboranes are clusters of carbon and boron atoms that, when functionalized, can lower the symmetry of the cluster. Here the authors present a method to alkenylate B–H bonds on ocarboranes enantioselectively via iridium catalysis.
Ruofei Cheng +4 more
doaj +1 more source
Towards the Application of Purely Inorganic Icosahedral Boron Clusters in Emerging Nanomedicine
Molecules, 2023 Traditionally, drugs were obtained by extraction from medicinal plants, but more recently also by organic synthesis. Today, medicinal chemistry continues to focus on organic compounds and the majority of commercially available drugs are organic molecules,
Francesc Teixidor +2 more
doaj +1 more source
Icosahedral Meta-Carboranes Containing Exopolyhedral B-Se and B-Te Bonds [PDF]
, 2021 Chalcogen-containing carboranes have been known for several decades and possess stable exopolyhedral B(9)-Se and B(9)-Te σ bonds despite the electron-donating ability of the B(9) vertex. While these molecules are known, little has been done to thoroughly
Fadi, Alsarhan +5 more
core +1 more source
, 2020 A traceless bidentate directing group guided copper catalyzed direct cage B(4,5)-H disulfenylation of o-carboranes has been achieved, leading to a series of B(4,5)-disulfenylated o-carborane derivatives in high yields with excellent regioselectivity. The
Quan, Yangjian +5 more
core +2 more sources
Practical Synthesis of Aminoethyl-o-carboranes
, 2016 A convenient synthesis of [(N,N‘-dibenzylamino)ethyl]-o-carboranes (3) is reported. Under catalytic hydrogenolysis conditions (H2/Pd−C), o-carboranylamines with N-benzyl groups were selectively removed to give the corresponding secondary amines (4). Thus,
Jaejung Ko (1714603) +6 more
core +2 more sources
Iridium-catalysed regioselective borylation of carboranes via direct B–H activation
Nature Communications, 2017 Functionalization of the multiple, similar, boron-hydrogen bonds in carboranes is difficult to achieve with selectivity. Here the authors report an iridium-catalysed borylation ofo-carboranes with high yields and regioselectivities.
Ruofei Cheng, Zaozao Qiu, Zuowei Xie
doaj +1 more source
The Importance of Strain (Preorganization) in Beryllium Bonds
Molecules, 2020 In order to explore the angular strain role on the ability of Be to form strong beryllium bonds, a theoretical study of the complexes of four beryllium derivatives of orthocloso-carboranes with eight molecules (CO, N2, NCH, CNH, OH2, SH2, NH3, and PH3 ...
Ibon Alkorta +5 more
doaj +1 more source
Synthesis and In Vitro Biological Evaluation of p-Carborane-Based Di-tert-butylphenol Analogs
Molecules, 2023 Targeting inflammatory mediators and related signaling pathways may offer a rational strategy for the treatment of cancer. The incorporation of metabolically stable, sterically demanding, and hydrophobic carboranes in dual cycloxygenase-2 (COX-2)/5 ...
Sebastian Braun +10 more
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Electrochemical Cage Activation of Carboranes
, 2022 Carboranes are boron–carbon molecular clusters that possess unique properties, such as their icosahedron geometry, high boron content, and delocalized three‐dimensional aromaticity.
Becky Bongsuiru Jei +7 more
core +1 more source
High-Temperature-Performance Cyanate Ester Composites with Carboranes [PDF]
, 2021 Cyanate esters (CEs) are an important class of materials among high-temperature-performance thermosets. They are used in aerospace launch vehicles, heat sinks, booms, trusses of satellites, etc., due to their high glass transition temperatures (>220 °C),
Sabrina Torres (8849249) +11 more
core +2 more sources