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2 article(s) from Ballester, Pablo

Supramolecular approaches to mediate chemical reactivity

Pablo Ballester,
Qi-Qiang Wang and
Carmine Gaeta

Beilstein J. Org. Chem. 2022, 18, 1463–1465, doi:10.3762/bjoc.18.152

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Editorial

Published 14 Oct 2022

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Synthesis and binding studies of two new macrocyclic receptors for the stereoselective recognition of dipeptides

Ana Maria Castilla,
M. Morgan Conn and
Pablo Ballester

Beilstein J. Org. Chem. 2010, 6, No. 5, doi:10.3762/bjoc.6.5

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Graphical Abstract

Figure 1: Schematic representation of the design of a host–guest complex based on antiparallel β-sheet geomet...

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Figure 2: Molecular structures of the two designed receptors 1 and 2 having different relative orientations o...

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Figure 3: CAChe minimized structures for the “endo” complexes formed between receptors 1 (a) and 2 (b) and th...

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Scheme 1: Synthesis of tetraprotected bis(alanyl)benzophenones 3 from L-phenylalanine 7.

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Scheme 2: Deprotection reactions of bis(alanyl)benzophenone units 3.

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Scheme 3: Synthesis of the linear tetrapeptides 15 and 17 as mixtures of diastereoisomers.

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Figure 4: a) Molecular structures of the two major diastereoisomers of the cyclic receptors obtained from the...

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Figure 5: Reverse-phase HPLC chromatograms of the purified fraction obtained from macrocyclization reactions ...

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Figure 6: Variable-temperature ¹H NMR experiments of 1 in chloroform-d solution. The proton signals that appe...

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Figure 7: Small fraction of the columnar arrangement observed in solid-state packing of receptor 1. Two adjac...

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Figure 8: Molecular structures of the guests used in the binding experiments.

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Figure 9: Selected region of the variable-concentration ¹H NMR spectra acquired using chloroform-d solutions ...

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Figure 10: a) Selected region of a series ¹H NMR spectra acquired during titration of receptor 2 with n-C₆H₁₃-...

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Figure 11: CAChe minimized structures for two possible binding geometries, a) exo and b) endo complexes formed...

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Full Research Paper

Published 19 Jan 2010

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