Synergy between homogeneous and heterogeneous catalysis

Catalysis Science & Technology, Journal Year: 2022, Volume and Issue: 12(22), P. 6623 - 6649

Published: Jan. 1, 2022

In this review the concept of bridging homogeneous and heterogeneous catalysis aspects for preparation nanoparticle-, single atom- supported metal complex-based catalysts their applications in organic transformations is discussed.

Language: Английский

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Cobalt single-atom catalysts for domino reductive amination and amidation of levulinic acid and related molecules to N-heterocycles

Chem Catalysis, Journal Year: 2022, Volume and Issue: 2(1), P. 178 - 194

Published: Jan. 1, 2022

Language: Английский

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Advances in the Catalytic Reductive Amination of Furfural to Furfural Amine: The Momentous Role of Active Metal Sites

ChemSusChem, Journal Year: 2022, Volume and Issue: 15(7)

Published: Feb. 16, 2022

Abstract One‐pot synthesis of sustainable primary amines by catalytic reductive amination bio‐based carbonyl compounds with NH 3 and H 2 is emerging as a promising robust approach. The amines, especially furfuryl amine (FUA) derived from furfural (FUR), wide range applications pharmaceuticals to agrochemicals, have attracted much attention due their versatility. This Review majorly comprised two segments on the FUR FUA, one precious (Ru, Pd, Rh) other non‐precious (Co, Ni) metals different supports in various solvent systems presence . active metal sites generated multiple are accentuated experimental evidence based CO‐diffuse reflectance infrared Fourier‐transform spectroscopy, temperature‐programmed reduction, X‐ray photoelectron calorimetry. Moreover, this comprehensively describes role acidic basic support for yield FUA. Overall, provides an insight into how design develop efficiently catalyst selective broad spectrum corresponding amines.

Language: Английский

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Synthesis of piperidines and pyridine from furfural over a surface single-atom alloy Ru1CoNP catalyst

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Oct. 10, 2023

The sustainable production of value-added N-heterocycles from available biomass allows to reduce the reliance on fossil resources and creates possibilities for economically ecologically improved synthesis fine bulk chemicals. Herein, we present a unique Ru1CoNP/HAP surface single-atom alloy (SSAA) catalyst, which enables new type transformation bio-based platform chemical furfural give N-heterocyclic piperidine. In presence NH3 H2, desired product is formed under mild conditions with yield up 93%. Kinetic studies show that formation piperidine proceeds via series reaction steps. Initially, in this cascade process, amination furfurylamine takes place, followed by hydrogenation tetrahydrofurfurylamine (THFAM) then ring rearrangement DFT calculations suggest Ru1CoNP SSAA structure facilitates direct opening THFAM resulting 5-amino-1-pentanol quickly converted value presented catalytic strategy highlighted an actual drug, alkylated piperidines, pyridine. nitrogen-containing heterocycles scarcely known. Here, authors report piperidines one-pot utilizing catalyst.

Language: Английский

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Electrocatalytic amino acid synthesis from biomass-derivable keto acids over ball milled carbon nanotubes

Green Chemistry, Journal Year: 2023, Volume and Issue: 25(8), P. 3117 - 3126

Published: Jan. 1, 2023

Using ball milled CNT catalysts, the electrocatalytic reductive amination of keto acids to amino was efficiently conducted. Moderate high formation rates (up 180.9 mmol g −1 cat h ) and Faradaic efficiencies 90%) were achieved.

Language: Английский

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