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1 article(s) from Perera, Suvenika

Insoluble methylene-bridged glycoluril dimers as sequestrants for dyes

Suvenika Perera,
Peter Y. Zavalij and
Lyle Isaacs

Beilstein J. Org. Chem. 2025, 21, 2302–2314, doi:10.3762/bjoc.21.176

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Graphical Abstract

Figure 1: Chemical structures of selected hosts used as the basis for sequestrants.

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Scheme 1: a) Synthesis of triphenylene-derived aromatic walls W1 and W2, and b) structure of commercially ava...

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Scheme 2: Synthesis of methylene-bridged glycoluril dimers G2W1–G2W4. Conditions: a) TFA: Ac₂O, 95 °C, 3.5 h (...

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Figure 2: Chemical structures of dyes used in this study.

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Figure 3: ¹H NMR spectra recorded (400 MHz, DMSO-d₆, rt) for: a) G2W1, b) G2W2, c) G2W3, d) G2W4.

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Figure 4: Plot of removal efficiency of dyes from water after incubating with equimolar amounts (7.2 μmol) of ...

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Figure 5: Cross-eyed stereoview of: a) one molecule of G2W3 in the crystal, and b) the packing of G2W3 in the...

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Figure 6: Cross-eyed stereoview of: a) a molecule of G2W1 in the crystal, b) the packing of G2W1 along the xz...

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Figure 7: a) Plot of removal efficiency of methylene blue (240 μM, 1 mL) from water after incubating with dif...

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Figure 8: Plot of the removal efficiency versus methylene blue concentration (70, 90, 120, 180, 240, 300, 100...

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Figure 9: a) Plot of removal efficiency of methylene blue (240 μM, 1 mL) from water as a function of time aft...

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Published 29 Oct 2025

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