Hydrogen-mediated acid-base transformation of Ni supported Mo₅N₆ for hydrogenative rearrangement of furfural derivatives

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(24), P. 14531 - 14539

Published: Jan. 1, 2024

The hydrogenative rearrangement of bioderived furfural derivatives to various cyclopentanone is vital for synthesizing fine chemicals but challenging owing the complex cascade reaction network.

Language: Английский

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Palladium Single Atom‐supported Covalent Organic Frameworks for Aqueous‐phase Hydrogenative Hydrogenolysis of Aromatic Aldehydes via Hydrogen Heterolysis

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 6, 2024

Developing a method for the tandem hydrogenative hydrogenolysis of bio-based furfuryl aldehydes to methylfurans is crucial synthesizing sustainable biofuels and chemicals; however, it poses challenge due easy hydrogenation C=C bond difficult cleavage C-O bond. Herein, palladium (Pd) single-atom-supported covalent organic framework was fabricated showed unique 2,5-dimethylfuran yield up 98.2 % when reacted with 5-methyl aldehyde in an unprecedented water solvent at 30 °C. Furthermore, exhibited excellent catalytic universality while converting various furfuryl-, benzyl-, heterocyclic room temperature. The analysis mechanism confirmed that H

Language: Английский

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CaH2-Assisted Molten Salt Synthesis of Zinc-Rich Intermetallic Compounds of RhZn13 and Pt3Zn10 for Catalytic Selective Hydrogenation Application

Crystals, Journal Year: 2024, Volume and Issue: 14(3), P. 278 - 278

Published: March 15, 2024

Zinc-included intermetallic compound catalysts of RhZn, PtZn, and PdZn with a molar ration Zn/metal = 1/1, which are generally prepared using hydrogen reduction approach, known to show excellent catalytic performance in some selective hydrogenations organic compounds. In this study, order reduce the incorporated mounts expensive noble metals, we attempted prepare zinc-rich compounds via CaH2-assisted molten salt synthesis method stronger capacity than common method. X-ray diffraction results indicated formation RhZn13 Pt3Zn10 samples by ZnO-supported metal precursors. hydrogenation reaction p-nitrophenol p-aminophenol, showed higher selectivity RhZn/ZnO PtZn/ZnO almost similar conversions. Thus, it was demonstrated that could be superior compared conventional RhZn PtZn.

Language: Английский

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Palladium Single Atom‐supported Covalent Organic Frameworks for Aqueous‐phase Hydrogenative Hydrogenolysis of Aromatic Aldehydes via Hydrogen Heterolysis

Angewandte Chemie, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 6, 2024

Abstract Developing a method for the tandem hydrogenative hydrogenolysis of bio‐based furfuryl aldehydes to methylfurans is crucial synthesizing sustainable biofuels and chemicals; however, it poses challenge due easy hydrogenation C=C bond difficult cleavage C−O bond. Herein, palladium (Pd) single‐atom‐supported covalent organic framework was fabricated showed unique 2,5‐dimethylfuran yield up 98.2 % when reacted with 5‐methyl aldehyde in an unprecedented water solvent at 30 °C. Furthermore, exhibited excellent catalytic universality while converting various furfuryl‐, benzyl‐, heterocyclic room temperature. The analysis mechanism confirmed that H 2 heterolytically activated on Pd−N pair triggered keto‐enol tautomerism frameworks (COFs) host, resulting − −Pd⋅⋅⋅O−H + sites. These sites served as novel asymmetric C=O group C−OH through scarce SN mechanism. This study demonstrated remarkable bifunctional catalysis ‐induced COF catalysts atypical preparation methyl aromatics

Language: Английский

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Pd-Ti3SiC2 synergistic catalysis for highly selective hydrogenative rearrangement of biomass-derived furfural to cyclopentanone

Fuel, Journal Year: 2024, Volume and Issue: 384, P. 134045 - 134045

Published: Dec. 13, 2024

Language: Английский

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