Articles with "aza crown" as a keyword



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Helix Induction and Inversion of Polymeric Foldamer Regulated by the Single Enantiomers.

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Published in 2022 at "Macromolecular rapid communications"

DOI: 10.1002/marc.202200238

Abstract: In general, a single enantiomer can induce a foldamer into a preferred-handed helix, while another condition is required for the helical inversion. In this work, it is found that the helix induction and subsequent inversion… read more here.

Keywords: helix induction; aza crown; inversion; single enantiomers ... See more keywords
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Promotional effect of macrocyclization in O2Nx naphtha-aza-crown macrocyclic ligands on fluorescence chemosensing of Al(III)

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Published in 2019 at "Journal of Luminescence"

DOI: 10.1016/j.jlumin.2018.09.014

Abstract: Abstract Two new macrocyclic ligands Ln (L and L′) bearing two fluorophore naphthalene moieties were synthesized and characterized by employing 1H and 13C NMR, IR, microanalysis as well as mass spectrometry. Comparative studies on the… read more here.

Keywords: o2nx naphtha; fluorescence; naphtha aza; aza crown ... See more keywords
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Solvent-Induced Luminescence and Structural Transformation of a Dinuclear Gold(I) (Aza-18-crown-6)dithiocarbamate Compound.

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Published in 2021 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.0c03571

Abstract: The reaction of AuCl(SMe2) with equimolar NaO5NCS2 [O5NCS2 = (aza-18-crown-6)dithiocarbamate] in CH3CN gave [Au2(O5NCS2)2]·2CH3CN (2·2CH3CN), where six other 2·solvates (solvates = 2DMF, 2DMSO, 2THF, 2acetone, 1.5toluene, and 1.5anisole) can be successfully isolated from different crystal-growing… read more here.

Keywords: crown dithiocarbamate; luminescence energies; aza crown; intermolecular contacts ... See more keywords
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Theoretical Design of a New Allosteric Switch and Fluorescence Chemosensor Double Functional Devices of Aza-Crown Ether

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Published in 2017 at "Journal of Physical Chemistry C"

DOI: 10.1021/acs.jpcc.6b10228

Abstract: A novel molecular device (trans-azobenzene embedded N-(11-pyrenyl methyl)aza-21-crown-7) with double functional devices was designed on the basis of theoretical calculations. Pyrenyl methyl covalently bonded to aza-21-crown-7 at the nitrogen position interacting with a series of… read more here.

Keywords: new allosteric; theoretical design; double functional; design new ... See more keywords
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Crown Ether-Derived Chiral BINOL: Enantioselective Michael Addition of Alkenyl Boronic Acids to α,β-Unsaturated Ketones

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Published in 2021 at "ACS Omega"

DOI: 10.1021/acsomega.1c05875

Abstract: A new class of aza-crown ether-derived chiral BINOL catalysts were designed, synthesized, and applied in the asymmetric Michael addition of alkenylboronic acids to α,β-unsaturated ketones. It was found that introducing aza-crown ethers to the BINOL… read more here.

Keywords: derived chiral; ether derived; chiral binol; crown ether ... See more keywords
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Lithium sensors based on photophysical changes of 1-aza-12-crown-4 naphthalene derivatives synthesized via Buchwald–Hartwig amination

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Published in 2022 at "RSC Advances"

DOI: 10.1039/d2ra05746h

Abstract: Lithium detection is of great significance in many applications. Lithium-sensing compounds with high selectivity are scarce and, if any, complicated to synthesize. We herein report a novel yet simple compound that can detect lithium ions… read more here.

Keywords: synthesized via; aza crown; buchwald hartwig; hartwig amination ... See more keywords
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Synthesis, Biological Evaluation, and Molecular Modeling of Aza-Crown Ethers

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Published in 2021 at "Molecules"

DOI: 10.3390/molecules26082225

Abstract: Synthetic and natural ionophores have been developed to catalyze ion transport and have been shown to exhibit a variety of biological effects. We synthesized 24 aza- and diaza-crown ethers containing adamantyl, adamantylalkyl, aminomethylbenzoyl, and ε-aminocaproyl… read more here.

Keywords: diaza crown; ca2 flux; ca2; aza crown ... See more keywords