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1 article(s) from Inaudi, Paolo

Microwave-enhanced additive-free C–H amination of benzoxazoles catalysed by supported copper

Andrei Paraschiv,
Valentina Maruzzo,
Filippo Pettazzi,
Stefano Magliocco,
Paolo Inaudi,
Daria Brambilla,
Gloria Berlier,
Giancarlo Cravotto and
Katia Martina

Beilstein J. Org. Chem. 2025, 21, 1462–1476, doi:10.3762/bjoc.21.108

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Graphical Abstract

Scheme 1: Representative synthetic routes for the C–H amination of benzoxazole using supported copper catalys...

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Figure 1: Reaction of benzimidazole with piperidine. a) Reaction scheme including intermaidates and b) conver...

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Figure 2: Reaction rate comparison between conventional (oil bath) and MW heating. Reaction conditions: benzo...

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Scheme 2: Graphical representation of Si-MonoAm-Cu(I) and Si-DiAm-Cu(I) preparation.

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Figure 3: TGA profiles of SIPERNAT silica and Si-MonoAm and Si-DiAm.

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Scheme 3: Scope of the MW-promoted C2-amination of benzoxazole catalysed by Si-MonoAm-Cu(I). Reaction conditi...

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Scheme 4: C2-Amination of substituted benzoxazoles. Reaction conditions: benzoxazole (1.0 mmol), piperidine (...

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Figure 4: Hot filtration test for the Si-MonoAm-Cu(I)-catalysed C2-amination of benzoxazole with piperidine i...

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Figure 5: FTIR spectra of samples on the left 3800–2400 cm⁻¹ wavenumber on the right 1750–1350 cm⁻¹ wavenumbe...

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Figure 6: Si-MonoAm-Cu(I) catalyst reuse.

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Figure 7: FESEM images of sample a) Si-MonoAm-Cu(I) 5 wt % and c) Si-MonoAm-Cu(I) 5 wt % used.

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Figure 8: EDS maps of a) Si-MonoAm-Cu(I) and b) Si-MonoAm-Cu(I) used.

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Published 15 Jul 2025

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