Calixarenes

Gutsche, C. David

doi:10.1021/ar00089a003

Cited by 583 publications

(338 citation statements)

References 3 publications

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“…-TCASA-500 method: A method using GOD and Fe 3+ -TCASA-500 was applied for the determination of glucose, in which glucose was indirectly determined by measuring the absorbance at 505 nm of the quinoid dye produced through reactions (1) and (2). A mixture of the sample solution (50 -500 µg of glucose, 0.5 ml) and the reagent solution A (1.5 ml) was incubated at room temperature for 10 min.…”

Section: +mentioning

confidence: 99%

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Peroxidase-Like Catalytic Activity of Metal Complexes of Thiacalix[4]arenetetrasulfonate on the Modified Ion-Exchanger and Its Application to the Determination of Hydrogen Peroxide1

et al. 2000

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Calix [n]arenes are a class of macrocycles that have attracted much interest because of their potential for forming host-guest complexes, and have been extensively investigated in various fields. In this study, in an attempt to develop calix[n]arenes as an effective analytical reagent with enzyme-like activity, the peroxidase-like activity of the ion-exchangers modified with some metal complexes of thiacalix[4]arenetetrasulfonate (Fig. 1) was investigated. The modified ion-exchanger with the highest activity was applied for the determination of hydrogen peroxide and glucose in place of peroxidase.

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Section: +mentioning

confidence: 99%

“…Fe 3+ -TCASA-500 was applied for the determination of glucose by measuring the absorbance of the quinoid dye produced through reactions (1) and (2). The calibration curve using the GOD-Fe 3+ -TCASA-500 method was linear over the range between 50 and 500 µg glucose in a 0.5 ml sample solution.…”

Section: Application For the Determination Of Glucosementioning

confidence: 99%

Peroxidase-Like Catalytic Activity of Metal Complexes of Thiacalix[4]arenetetrasulfonate on the Modified Ion-Exchanger and Its Application to the Determination of Hydrogen Peroxide1

et al. 2000

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“…as indicated in Scheme 1 according to the previously published procedures [32], [33]. The compounds 3a and 3b were synthesized by refluxing 2a or 2b with 4-chlorobutyronitrile in the presence of K 2 CO 3 /NaI in dry acetonitrile.…”

Section: Resultsmentioning

confidence: 99%

“…Previous studies on supramolecular chemistry have focused on two-dimensional Compounds 1, 2a and 2b were synthesized according to the procedures described in the literature [32] [33]. The other compounds 3a-5b employed in this work as illustrated in Scheme 1, have been synthesized as described below: Scheme 1.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Extraction Studies of Calix[4]-Crown-4 Oxime Derivatives

Akkuş¹,

Aslan²

2017

IJOC

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The article comprises synthesis of calyx[4]-oxa-crown, and calix[4]-thia-crown compounds containing nitrile groups (3a, 3b) and amino groups (4a, 4b) and their corresponding oxime derivatives (5a, 5b) and liquid-liquid extraction studies of these compounds. The oxime derivatives of compounds (5a, 5b) have been synthesized by reacting of di-n-butylamino derivatives of calix[4]-oxa-crown, and calix[4]-thia-crown compounds (4a, 4b) with amphi-chloroglyoxime in methanol-THF. Their cation and anion transfer studies were performed by using liquid-liquid extraction procedure. It has been concluded from the observations that the compound 3a shows a good extraction behavior toward Na + ion in the presence of other metal cations. Whereas, its oxime derivatives transfers all of the metal cations used in the liquid-liquid extraction studies.

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“…The conformation of a specific calix [4]arene sample can be easily distinguished by its characteristic 1 H-NMR patterns arising from the ArCH 2 Ar methylene protons. [44][45][46][47] Cone conformation is a preferred conformation which corresponds to the minimum energy. The cone conformer is identified by one characteristic pair of doublets of the Ar-CH 2 -Ar methylene protons (AB system, a coupling constant 2 J = 12-15 Hz is characteristic for geminal protons).…”

Section: Resultsmentioning

confidence: 99%

Synthesis of a Series of Novel Tetra-tert-butylcalix[4]arene Linked to 1,2,4-Triazole and 1,3,4-Oxadiazole Derivatives

Dilmaghani¹,

Ghezelbash²

2016

ACSi

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A series of tetra-tert-butylcalix[4]arene linked to 1,2,4-triazole-5-thiones and 1,3,4-oxadiazole-5-thiones derivatives at lower rim were synthesized by the reaction of 1,2,4-triazole-5-thione and 1,3,4-oxadiazole-5-thione with 5,11,17,23-tetra-tert-butyl-25,27-bis(3-bromopropoxy)-26,28-dihydroxycalix[4]arene (2). The synthesized compounds were characterized by FT-IR, 1 H NMR, 13 C NMR spectral data, elemental analysis and ESI-MS.

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Calixarenes

Cited by 583 publications

References 3 publications

Peroxidase-Like Catalytic Activity of Metal Complexes of Thiacalix[4]arenetetrasulfonate on the Modified Ion-Exchanger and Its Application to the Determination of Hydrogen Peroxide1

Peroxidase-Like Catalytic Activity of Metal Complexes of Thiacalix[4]arenetetrasulfonate on the Modified Ion-Exchanger and Its Application to the Determination of Hydrogen Peroxide1

Synthesis and Extraction Studies of Calix[4]-Crown-4 Oxime Derivatives

Synthesis of a Series of Novel Tetra-tert-butylcalix[4]arene Linked to 1,2,4-Triazole and 1,3,4-Oxadiazole Derivatives

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