Lower rim substituted tert-butylcalix[4]arenes (II). Complexing ability of 5,11,17,23-tetra-tert-butyl-25,26,27,28-tetrakis-O-(piperidinylcarbonyl)methylenecalix[4]arene. The crystal structures of the ligand and its sodium complex

Bocheńska, Maria; Zielińska, Anna; Kravtsov, Victor Ch.; Gdaniec, Мaria; Luks, Emilia; Radecka‐Paryzek, Wanda

doi:10.1016/s0277-5387(02)00834-3

Cited by 8 publications

(14 citation statements)

References 10 publications

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“…The stability constants were determined in methanol with ligand concentration 4•10 -5 M•L -1 at 25 °C and constant ionic strength 0.01 M in Et 4 NCl by UV absorption spectrophotometry within the range 250-320 nm and interpreted with the program Sirko. [15] Synthesis General procedure for 2-4.…”

Section: Stability Constant Determinationmentioning

confidence: 99%

“…[1][2][3][4][5][6][7] Calixarenes substituted by molecular residues having receptor properties of "guest-host" complexation type may form an additional intramolecular cavity which can vary depending on the "guest" size and nature. Introduction of such residue as crown ether into calixarene molecule was a main task at the creation of new effective receptors based on calixarenes.…”

Section: Introductionmentioning

confidence: 99%

“…Introduction of such residue as crown ether into calixarene molecule was a main task at the creation of new effective receptors based on calixarenes. Taking into account the relative rigidity of the calix [4]arene skeleton and presence of "bigger" macrocycle short linker binding to crown ether substituent one can expect a definite substituent pre-organization favouring to the metal cations p-tert-Butylcalix [4]arenes with Crown-5 Ether Substituents with large ionic radius complexation of sandwich or pseudo sandwich type.…”

Section: Introductionmentioning

confidence: 99%

“…The synthesis and complexing abilities of heteroditopic calix [4]arenes containing two and four amidobenzo-15-crown-5 units at the lower rim were demonstrated. [8] It was found that calixarene with four crown ether substituents formed pentanuclear complex with sodium cations bound in crown ether moieties and tetraamide cavity.…”

Section: Introductionmentioning

confidence: 99%

“…In order to obtain new receptors based on calix[4]-arenes, it was decided to synthesize a series of p-tertbutylcalix [4]arene derivatives containing at the lower rim aza-, benzo-or benzoazacrown ether sites with equal size of crown ether fragment (crown-5) attached to calixarene skeleton via amide group and to compare the extraction abilities of the obtained compounds.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and Extraction Properties of p-tert-Butylcalix[4]arenes with Crown-5 Ether Substituents

Алексеева¹,

Basok²

2017

MHC

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Section: Stability Constant Determinationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Synthesis and Extraction Properties of p-tert-Butylcalix[4]arenes with Crown-5 Ether Substituents

Алексеева¹,

Basok²

2017

MHC

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Synthesis, 1H-NMR conformational analysis and complexation studies of two di-imidazolyl acetamido p-tert-butylcalix[4]arenes

Chériaa

Abidi²,

Vicens

2008

J Incl Phenom Macrocycl Chem

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Influence of alkali and alkaline earth ions on the O-alkylation of the lower rim phenolic-OH groups of p-tert-butyl-calix[4]arene to result in amide-pendants: Template action of K+ and the structure of K+ bound tetra-amide derivative crystallized with a p-tert-butyl-calix[4]arene anion

2008

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Role of alkali and alkaline earth ions on the formation of calix[4]arene-amide derivatives through O-alkylation of the lower rim phenolic-OH groups in general and template action of K + in particular have been explored. Na + and K + ions among alkali, and Ca 2+ and Sr 2+ ions among alkaline earth have shown tetra-amide derivatives bound to metal ion species. Among all these, potassium salts act as template and yields a K + bound tetra-amide derivative where the charge is counter balanced by a calix [4] arene-monoanion and the product is crystallographically characterized. Change in the amide precursor used in these O-alkylation reactions has no effect on the type of the amide derivative formed. Also demonstrated is a direct one-step reaction for the preparation of 1,3-di-amide derivative in high yield and low reaction period using CsHCO 3 .Keywords. O-alkylation at the lower rim of calix[4]arene; template action of K + ; mono-anion of p-tertbutyl-calix[4]arene; alkali and alkaline earth ions.

show abstract

Lower rim substituted tert-butylcalix[4]arenes (II). Complexing ability of 5,11,17,23-tetra-tert-butyl-25,26,27,28-tetrakis-O-(piperidinylcarbonyl)methylenecalix[4]arene. The crystal structures of the ligand and its sodium complex

Cited by 8 publications

References 10 publications

Synthesis and Extraction Properties of p-tert-Butylcalix[4]arenes with Crown-5 Ether Substituents

Synthesis and Extraction Properties of p-tert-Butylcalix[4]arenes with Crown-5 Ether Substituents

Synthesis, 1H-NMR conformational analysis and complexation studies of two di-imidazolyl acetamido p-tert-butylcalix[4]arenes

Influence of alkali and alkaline earth ions on the O-alkylation of the lower rim phenolic-OH groups of p-tert-butyl-calix[4]arene to result in amide-pendants: Template action of K+ and the structure of K+ bound tetra-amide derivative crystallized with a p-tert-butyl-calix[4]arene anion

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