Results 151 to 160 of about 9,599 (215)
Acyclic cucurbituril as sequestrant for acetaminophen.
Chem Commun (Camb)Mogensen JS +5 more
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First Organometaltic Calix[4]arenes Bearing W(0) Fischer Carbene Complexes
, 2015 TOMMASONE, STEFANO +7 more
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Journal of Inclusion Phenomena and Macrocyclic Chemistry, 1994
Due to the nonplanarity of the basic 1 n -metacyclophane system, calixarenes and resorcarenes can be transformed into molecules with inherent chirality. Various attempts to achieve this goal are reviewed. Special emphasis is given to derivatives with C n -symmetry, including derivatives of spherand calixarenes and other calixarene-like macrocycles.
Volker Böhmer
exaly +2 more sources
Due to the nonplanarity of the basic 1 n -metacyclophane system, calixarenes and resorcarenes can be transformed into molecules with inherent chirality. Various attempts to achieve this goal are reviewed. Special emphasis is given to derivatives with C n -symmetry, including derivatives of spherand calixarenes and other calixarene-like macrocycles.
Volker Böhmer
exaly +2 more sources
Multivalent and Multifunctional Calixarenes in Bionanotechnology [PDF]
European Journal of Organic Chemistry, 2020 The key features of calixarene derivatives as multivalent ligands for biomacromolecules and as multifunctional catalysts are reviewed herein. The ease of functionalization and the possibility to control the regio- and stereochemical disposition of ...
Laura Baldini +2 more
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ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Chebrolu P. Rao, Mishtu Dey
openaire +2 more sources
AbstractFor Abstract see ChemInform Abstract in Full Text.
Chebrolu P. Rao, Mishtu Dey
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Regioselective Monoalkylation of Calixarenes. Synthesis of Homodimer Calixarenes
The Journal of Organic Chemistry, 2000The selective monoalkylation at the smaller (lower) rim of the p-tert-butylcalix[4]- and -[6]arenes using bis(butyltin)oxide and different alkylating agents is described. The procedure is remarkable for the mild conditions used allowing an efficiently access to monoalkylated calixarene derivatives in moderate to good yields.
, Santoyo-González +2 more
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Deprotonation of Calixarenes in Acetonitrile
The Journal of Organic Chemistry, 2005[Structure: see text]. The pKa values for calixarenes in MeCN have been determined by selective titration with bases using a spectroscopic method. These values are as follows: calix[4]arene pKa(1) = 19.06 +/- 0.22, pKa(2) > 33; calix[6]arene pKa(1) = 15.59 +/- 0.06, pKa(2) = 23.85 +/- 0.35, pKa(3) > 33; calix[8]arene pKa(1) = 17.20 +/- 0.20, pKa(2 ...
Cunningham, ID, Woolfall, M
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Chemical Communications, 2013
The synthesis in 1985 by the group led by Tony McKervey of numerous calix[4]arene derivatives capable of acting as neutral, multidentate ligands proved to be a seminal step in the development of various applications of calixarenes as metal-ion binding agents.
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The synthesis in 1985 by the group led by Tony McKervey of numerous calix[4]arene derivatives capable of acting as neutral, multidentate ligands proved to be a seminal step in the development of various applications of calixarenes as metal-ion binding agents.
openaire +2 more sources