Supramolecular chemistry, Год журнала: 2023, Номер 34(9-10), С. 313 - 315
Опубликована: Окт. 2, 2023
Язык: Английский
Journal of the American Chemical Society, Год журнала: 2024, Номер 146(43), С. 29496 - 29502
Опубликована: Окт. 21, 2024
Removing the nitrogen atom from secondary amines while simultaneously linking remaining fragments is a powerful form of late-stage skeletal editing. Here, we report its use for deletion dibenzylammonium template used to assemble crown ether rotaxanes. The reaction uses an anomeric amide that activates generate carbon-carbon bond replaces amine nitrogen. Despite potential dethreading intermediate diradical pair, was successfully deleted series rotaxane axles as long macrocycle could access coconformations did not inhibit group. skeletally edited interlocked molecules were obtained directly parent ether-dibenzylammonium rotaxanes in modest yields (23-36%) and characterized by NMR spectroscopy, mass spectrometry, X-ray crystallography. One shows network weak CH···O hydrogen bonds between benzylic methylene groups axle solid state, place ether-ammonium binding motif parent, unedited, rotaxane.
Язык: Английский
Процитировано
3
The Journal of Organic Chemistry, Год журнала: 2025, Номер 90(10), С. 3603 - 3609
Опубликована: Март 5, 2025
The formation of pseudo[3]rotaxane using dimers per(5-carboxy-5-dehydroxymethyl)-cyclodextrins as ring components and secondary ammoniums an axle is presented. This supramolecule formed by the unique interaction circularly arranged carboxylic acid acting hydrogen bonding acceptors covering moiety. On these grounds, we could achieve synthesis [3]rotaxane capping terminal groups through thiol-ene reactions.
Язык: Английский
Процитировано
0
Communications Chemistry, Год журнала: 2025, Номер 8(1)
Опубликована: Апрель 2, 2025
Язык: Английский
Процитировано
0
Chemical Communications, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
Cycloparaphenylenes (CPPs), which feature a radial π-system, have attracted considerable attention due to their size-dependent photophysical properties and distinctive curved π-conjugated cavity. Incorporating aromatic systems beyond benzene enables precise tuning of optoelectronic meet specific requirements in supramolecular chemistry materials science. In this review, we systematically summarize the synthesis, properties, functional applications CPP derivatives chiral materials, chemistry, photoelectric devices. It is anticipated that review will provide valuable insights for researchers working on carbon nanohoops, contribute advancement synthetic chemistry.
Язык: Английский
Процитировано
0
Chemistry - A European Journal, Год журнала: 2024, Номер unknown
Опубликована: Июль 10, 2024
Abstract Modular synthesis can combine different functional modules to flexibly regulate comprehensive properties and study the diversity of compounds. This established a modular bicyclic strategy combining polynitro energetic module with iodine‐containing biocidal module. Compounds 1 – 6 high iodine content (48.72–69.56 %) thermal stability (T d : 172–304 °C) were synthesized exhaustively identified. By synthesis, detonation gas‐production 3 improved greatly expanding their efficacy maintained atomic utilization Notably, 4,5‐diiodo‐3,4’,5’‐trinitro‐1,3’‐bipyrazole ( 5 ) 3,5‐diiodo‐4,4’,5’‐trinitro‐1,3’‐bipyrazole exhibit velocities D 5903 m s −1 , 5769 respectively) highest gas production 212.85 L mol 217.66 after decomposition. diversifies polyiodio‐nitro compounds, also inspire implementation similar strategies provide family‐level synthetic solutions materials.
Язык: Английский
Процитировано
1
Angewandte Chemie, Год журнала: 2024, Номер unknown
Опубликована: Июнь 3, 2024
Abstract Expanding the diversity of multi‐macrocyclic nanocarbons, particularly those with all‐benzene scaffolds, represents intriguing yet challenging synthetic tasks. Complementary to existing approaches, here we report an efficient and modular post‐functionalization strategy that employs iridium‐catalyzed C−H borylation highly strained meta ‐cycloparaphenylenes ( m CPPs) CPP‐derived catenane. Based on functionalized macrocyclic synthons, a number novel topological structures including linear cyclic chains, polycatenane, pretzelane have been successfully prepared characterized, thereby showcasing utility potential strategy.
Язык: Английский
Процитировано
0
Angewandte Chemie International Edition, Год журнала: 2024, Номер unknown
Опубликована: Июнь 3, 2024
Expanding the diversity of multi-macrocyclic nanocarbons, particularly those with all-benzene scaffolds, represents intriguing yet challenging synthetic tasks. Complementary to existing approaches, here we report an efficient and modular post-functionalization strategy that employs iridium-catalyzed C-H borylation highly strained meta-cycloparaphenylenes (mCPPs) mCPP-derived catenane. Based on functionalized macrocyclic synthons, a number novel topological structures including linear cyclic chains, polycatenane, pretzelane have been successfully prepared characterized, thereby showcasing utility potential strategy.
Язык: Английский
Процитировано
0
Nature Communications, Год журнала: 2024, Номер 15(1)
Опубликована: Авг. 5, 2024
The separation and purification of chemical raw materials, particularly neutral compounds with similar physical properties, represents an ongoing challenge. In this study, we introduce a class water-soluble macrocycle compound, calix[2]azolium[2]benzimidazolone (H), comprising two azolium benzimidazolone subunits. heterocycle subunits form hydrophobic binding pocket that enables H1 to encapsulate series guests in water 1:1 or 2:1 stoichiometry, including aldehydes, ketones, nitrile compounds. host-guest complexation the solid state was further confirmed through X-ray crystallography. Remarkably, shown be nonporous adaptive crystal material separate valeraldehyde from mixture valeraldehyde/2-methylbutanal/pentanol high selectivity recyclability states. This work not only demonstrates azolium-based macrocycles are promising candidates for encapsulation organic molecules but also shows potential application science. properties remains challenging. Here, authors macrocyclic calixarene compound as crystalline state.
Язык: Английский
Процитировано
0
Supramolecular chemistry, Год журнала: 2023, Номер 34(9-10), С. 313 - 315
Опубликована: Окт. 2, 2023
Язык: Английский
Процитировано
0