An Efficient Synthetic Approach to Calix[n]furan[4‐n]pyrroles and the Calix[n]tetrahydrofuran[4‐n]pyrrolidines
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DOI: 10.1002/ejoc.201701156
Abstract: A scalable synthesis of calix[n]furan[4-n]pyrroles and their fully reduced analogues, the novel calix[n]tetrahydrofuran[4-n]pyrrolidines obtained by hydrogenation of their aromatic relatives, was developed and optimized. The hydrogenation reaction was studied at several selected pressures (P =… read more here.
Keywords: calix furan; furan pyrroles; calix tetrahydrofuran; calix ... See more keywords
Very Selective Synergistic Extraction of Univalent Cations into Nitrobenzene and Phenyltrifluoromethyl Sulfone Solutions of Dicarbollylcobaltate in the Presence of Some Calix[4]arene-crowns-6
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Solution Chemistry"
DOI: 10.1007/s10953-020-01033-8
Abstract: The exchange extraction constants corresponding to the general equilibria M+(aq) + NaL+(org) ⇌ ML+(org) + Na+(aq) and the respective M+(aq) + CsL+(org) ⇌ ML+(org) + Cs+(aq), taking place in the two-phase water–nitrobenzene and water–phenyltrifluoromethyl sulfone (abbrev. FS 13) systems (M+ = Li+, H3O+, Ag+, K+,… read more here.
Keywords: extraction; calix arene; calix; phenyltrifluoromethyl sulfone ... See more keywords
Chromate-selective electrodes prepared by using calix[4]arenes for the speciation of Cr(VI) and Cr(III)
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DOI: 10.1007/s11581-017-2080-3
Abstract: The calix[4]arene and its mono-, di-, tri-, and tetra-acryloyl esters were used as suitable ionophores for Cr(VI) species to develop poly(vinyl chloride) (PVC) membrane electrodes. The influence of membrane contents and pH on the potentiometric… read more here.
Keywords: speciation iii; calix; chromate selective;
Recognition, Sensing, and Trapping of Bicarbonate Anions with a Dicationic meso-Bis(benzimidazolium) Calix[4]pyrrole
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DOI: 10.1016/j.chempr.2017.10.007
Abstract: Summary A meso -aryl calix[4]pyrrole derivative bearing benzimidazolium groups at the two diametrical meso positions was synthesized. The receptor acts as an effective host for the bicarbonate anion at concentrations as low as 4 nM. A… read more here.
Keywords: anion; meso; calix pyrrole; benzimidazolium ... See more keywords
Calix[4]arene tetracarboxylic acid-treated lipase immobilized onto metal-organic framework: Biocatalyst for ester hydrolysis and kinetic resolution.
Sign Up to like & getrecommendations! Published in 2021 at "International journal of biological macromolecules"
DOI: 10.1016/j.ijbiomac.2021.02.003
Abstract: Metal organic frameworks (MOFs) are hybrid organic inorganic materials with unique properties such as well-defined pore structure, extremely high surface area, excellent chemical-thermal stability. MOFs-based constructs have been extensively engineered and used for applications, such… read more here.
Keywords: crl calix; calix zif; ester; zif ... See more keywords
Theoretical assessment of calix[n]arene as drug carriers for second generation tyrosine kinase inhibitors
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Molecular Liquids"
DOI: 10.1016/j.molliq.2017.09.113
Abstract: Abstract With an endeavour to improve the bioavailability profile of Tyrosine kinase inhibitors (TKI's) viz. gefitinib, regorafenib and sunitinib, the drug carrier based on calix[n]arene macrocycles has been proposed. A total of 72 calix[n]arene-TKI's complexes… read more here.
Keywords: kinase inhibitors; calix arene; drug; calix ... See more keywords
Columnar self-assembly of bowl-shaped luminscent oxadiazole calix[4]arene derivatives
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Molecular Liquids"
DOI: 10.1016/j.molliq.2018.09.011
Abstract: Abstract In the present investigation, we wish to report a new class of blue light emitting liquid crystalline bowl-shaped molecules based on oxadiazole calix[4]arene has been designed and synthesized. These supramolecular compounds were investigated by… read more here.
Keywords: calix arene; shaped molecules; calix; bowl shaped ... See more keywords
Self-aggregation in aqueous solution of amphiphilic cationic calix[4]arenes. Potential use as vectors and nanocarriers
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Molecular Liquids"
DOI: 10.1016/j.molliq.2020.112724
Abstract: Abstract The self-aggregation of four amphiphilic cationic calix[4]arenes, CALIX, in aqueous solutions was investigated in this work. The nature of the polar group present at the upper rim as well as the length of the… read more here.
Keywords: calix arenes; amphiphilic cationic; self aggregation; calix ... See more keywords
Inter and intra-phase conformerism in two calix [4]arenes
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DOI: 10.1016/j.molstruc.2019.07.096
Abstract: Abstract Calix [4]arenes are macrocyclic compounds which can assume four main conformations (cone, partial cone, 1,2-alternate, and 1,3-alternate) driving their desired host-guest ability. Here we report a new polymorph of 25,26,27,28-tetrakis(methoxycarbonylmethoxy)calix [4]arene, which is present… read more here.
Keywords: conformerism; calix arenes; cone; calix ... See more keywords
Synthesis and study of calix[4]arenes bearing azo moieties at the meta position
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DOI: 10.1016/j.tet.2017.01.025
Abstract: Abstract Direct mercuration and subsequent transformation of organomercurial intermediates into the corresponding nitroso derivatives enabled the construction of calix[4]arenes bearing azo moieties at the meta position (to the alkoxy groups). These compounds, representing a unique… read more here.
Keywords: meta position; calix arenes; bearing azo; arenes bearing ... See more keywords
Influence of upper rim dibromo-substitution in bis-1,3-diketone calix[4]arenes on spectral properties of ligands and their lanthanide complexes
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DOI: 10.1016/j.tet.2017.07.043
Abstract: Abstract The present work introduces the synthesis and characterization of upper rim dibromo-substituted bis-1,3-diketone calix[4]arenes with hydroxy and propyloxy groups at the lower rim as ligands for Gd3+ and Tb3+ complexes. The dibromo-substitution does not… read more here.
Keywords: calix arenes; rim dibromo; dibromo; calix ... See more keywords