Results 11 to 20 of about 9,599 (215)
Focus on Catalysts, 2016 Introduction Contributions featuring the chemistry and applications of a family of macrocyclic compounds collectively known as ‘calixarenes’ are presented in this edited volume. The arsenal of structures based on calixarenes provides tools which are effective in numerous areas of supramolecular chemistry. The Editors have compiled a timely volume which
Neri P., Sessler J. L., Wang M. -X.
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Recent applications of chiral calixarenes in asymmetric catalysis [PDF]
Beilstein Journal of Organic Chemistry, 2018 The use of calixarenes in asymmetric catalysis is receiving increasing attention due to their tunable three-dimensional molecular platforms along with their easy syntheses and versatile modification at the upper and lower rims. This review summarizes the
Mustafa Durmaz +2 more
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Applications of calixarenes in cancer chemotherapy: facts and perspectives
Drug Design, Development and Therapy, 2015 Ali Yousaf,1 Shafida Abd Hamid,1 Noraslinda M Bunnori,1 AA Ishola2 1Kulliyyah of Science, 2Kulliyyah of Medicine, International Islamic University Malaysia, Bandar Indera Mahkota, Malaysia Abstract: Research on the therapeutic applications of ...
Yousaf A +3 more
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The synthesis and characterization of giant Calixarenes
Nature Communications, 2019 Calixarenes are cyclic oligomers obtained by condensation reactions between phenols and formaldehyde and usually include up to eight phenolic subunits. Here the authors demonstrate the synthesis of calixarenes with up to 90 phenolic subunits with up to ...
Vincent Guérineau +10 more
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Application of Calixarenes as Macrocyclic Ligands for Uranium(VI): A Review [PDF]
Journal of Chemistry, 2013 Calixarenes represent a well-known family of macrocyclic molecules with broad range of potential applications in chemical, analytical, and engineering materials fields. This paper covers the use of calixarenes as complexing agents for uranium(VI).
Katarzyna Kiegiel +2 more
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Mechanically Activated Luminescence in Polyurethanes Incorporating Calixarene Mechanophores. [PDF]
Angew Chem Int Ed EnglThe conformational flexibility of a calix[4]arene is exploited to obtain a reversible mechanoluminophore featuring a pyrene excimer couple at the upper rim. Stretching a linear polyurethane incorporating such mechanophore results in luminescence color change from yellow–green to blue, consistent with a force‐induced conformational motion of the ...
Visieri L +3 more
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Bis-amidinium calixarenes: Templates for self-assembled receptors [PDF]
, 1998 The synthesis of two bis-amidinium calixarenes 3 and 4 has been achieved. Compounds 3 and 4 self-assemble with carboxylate salts via amidinium-carboxylate salt bridges producing ditopic receptor ...
Philip A. Gale, Gale, Philip A.
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Self-Assembly of Discrete Porphyrin/Calix[4]tube Complexes Promoted by Potassium Ion Encapsulation
Molecules, 2021 The pivotal role played by potassium ions in the noncovalent synthesis of discrete porphyrin-calixarene nanostructures has been examined. The flattened-cone conformation adopted by the two cavities of octa-cationic calix[4]tube C4T was found to prevent ...
Massimiliano Gaeta +9 more
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A p-tert-Butyldihomooxacalix[4]arene Based Soft Gel for Sustained Drug Release in Water
Frontiers in Chemistry, 2020 P-tert-butyldihomooxacalix[4]arene is a well-known calix[4]arene analog in which one CH2 bridge is replaced by one -CH2OCH2- group. Thus, dihomooxacalix[4]arene has a slightly larger cavity than that of calix[4]arene and usually possesses a more flexible
Hao Guo +6 more
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Molecules, 2020 The influence of chirality in calixarene threading has been studied by exploiting the “superweak anion approach”. In particular, the formation of chiral pseudo[2]rotaxanes bearing a classical stereogenic center in their axle and/or wheel components has ...
Carmen Talotta +5 more
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