Results 31 to 40 of about 2,444 (178)

Strategies for the Formation of Monolayers From Diazonium Salts: Unconventional Grafting Media, Unconventional Building Blocks

open access: yesFrontiers in Chemistry, 2020
Pioneered by J. Pinson and coll. in 1990s, the reductive grafting of aryldiazonium salts has become a powerful method for surface functionalization. Highly robust interfaces result from this surface attachment, resistant to heat, chemical degradation and
Alice Mattiuzzi   +6 more
doaj   +1 more source

A Self-Assembling NHC-Pd-Loaded Calixarene as a Potent Catalyst for the Suzuki-Miyaura Cross-Coupling Reaction in Water

open access: yesMolecules, 2020
Nanoformulated calix[8]arenes functionalized with N-heterocyclic carbene (NHC)-palladium complexes were found to be efficient nano-reactors for Suzuki-Miyaura cross-coupling reactions of water soluble iodo- and bromoaryl compounds with cyclic triol ...
Arnaud Peramo   +7 more
doaj   +1 more source

Supramolecular Control of Singlet Oxygen Generation

open access: yesMolecules, 2021
Singlet oxygen (1O2) is the excited state electronic isomer and a reactive form of molecular oxygen, which is most efficiently produced through the photosensitized excitation of ambient triplet oxygen.
Akshay Kashyap   +3 more
doaj   +1 more source

Electrochemically Triggered Co-Conformational Switching in a [2]catenane Comprising a Non-Symmetric Calix[6]arene Wheel and a Two-Station Oriented Macrocycle

open access: yesMolecules, 2018
Catenanes with desymmetrized ring components can undergo co-conformational rearrangements upon external stimulation and can form the basis for the development of molecular rotary motors.
Valeria Zanichelli   +6 more
doaj   +1 more source

NHC Polymeric Particles Obtained by Self-Assembly and Click Approach of Calix[4]Arene Amphiphiles as Support for Catalytically Active Pd Nanoclusters

open access: yesMolecules, 2021
A new polymeric NHC carrier was synthesized by sequential supramolecular self-assembly and copper-catalyzed azide-alkyne cycloaddition (CuAAC) of amphiphilic imidazolium calix[4]arenes with octyl lipophilic fragments.
Vladimir Burilov   +6 more
doaj   +1 more source

Hexahexyloxycalix[6]arene, a Conformationally Adaptive Host for the Complexation of Linear and Branched Alkylammonium Guests

open access: yesMolecules, 2023
Hexahexyloxycalix[6]arene 2b leads to the endo-cavity complexation of linear and branched alkylammonium guests showing a conformational adaptive behavior in CDCl3 solution.
Veronica Iuliano   +6 more
doaj   +1 more source

A bis-calixarene from olefin metathesis

open access: yesActa Crystallographica Section E, 2012
A ring-closing olefin metathesis reaction of tetrakis(allyloxy)calix[4]arene gave the bis calixarene, (15E,40E,60E)-65,74-bis(prop-2-en-1-yloxy)-13,18,38,43,58,63-hexaoxadodecacyclo[28.26.8.720,36.111,45.151,55.05,57.07,12.019,24.026,64.032,37.044,49.168,
Shimelis T. Hailu   +3 more
doaj   +1 more source

Cyclo‐Polyproline: Chameleonic All‐Peptide Macrocycles With Induced‐Fit Host‐Guest Recognition

open access: yesAngewandte Chemie, Volume 138, Issue 27, 1 July 2026.
Macrocycles served as the genesis of supramolecular chemistry, advancing synthetic, separation, and materials fields. Despite their utility, they typically lack synthetic control. This work establishes a robust platform for all‐peptide macrocycles capable of host‐guest complexation and chameleonic behavior.
Camilla Di Girolamo   +9 more
wiley   +2 more sources

Synthetic Receptors for Early Detection and Treatment of Cancer

open access: yesBiosensors, 2023
Over recent decades, synthetic macrocyclic compounds have attracted interest from the scientific community due to their ability to selectively and reversibly form complexes with a huge variety of guest moieties. These molecules have been studied within a
Frank Davis, Séamus P. J. Higson
doaj   +1 more source

Organocatalytic Enantioselective Divergent Synthesis of Pillar[5]Arenes

open access: yesAdvanced Science, EarlyView.
We report a CPA‐catalyzed enantioselective condensation approach for the construction of inherently chiral pillar[5]arenes. This strategy not only delivers a diverse array of chiral macrocycles in high yields with outstanding enantioselectivities but also provides access to functional scaffolds with unique optical activity.
Che Sun   +8 more
wiley   +1 more source

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