Palladium-catalyzed oxidation of primary alcohols: Highly selective direct synthesis of acetals

Bueno, Aline C.; Gonçalves, José Aı́lton; Gusevskaya, Elena V.

doi:10.1016/j.apcata.2007.06.008

Cited by 34 publications

(18 citation statements)

References 33 publications

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“…Ethanol is a promising renewable raw material 1–3 for the production of value‐added chemicals, e.g., acetaldehyde 4–6, acetic acid 7, ethyl acetate 8, butadiene 9, diethoxyethane 10, hydrogen 11, butanol 12–14, and ethylene 15. Among these products, acetaldehyde is an important raw material for the production of acetic acid, acetic anhydride, cyanohydrin, acrylonitrile, acrylic acid esters, lactic acid, etc.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ni, La, and Ce Oxides on a Cu/Al₂O₃ Catalyst with Low Copper Loading for Ethanol Non‐oxidative Dehydrogenation

et al. 2021

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The effect of modifying additives (Ni, La, Ce oxides) on the activity of Cu/Al2O3 with a low copper loading was studied for ethanol non‐oxidative dehydrogenation. The catalysts were prepared by impregnation of the commercial Al2O3 granules and characterized by Brunauer‐Emmett‐Teller (BET), scanning electron microscopy (SEM), temperature‐programmed desorption of NH3 (TPD‐NH3), temperature‐programmed reduction of H2 (H2‐TPR), and thermogravimetric analysis (TGA). Modification of Cu/Al2O3 with Ni, La, and Ce oxides results in increasing catalytic activity. A modification of the Cu/Al2O3 catalyst with nickel and lanthanum oxides, in contrast to cerium oxide, leads to an improvement in the dispersion of the catalyst particles. The Cu‐Ni/Al2O3 catalyst with the highest acidity has the highest selectivity for acetaldehyde. The highest selectivity for butanol is observed for the Cu‐La/Al2O3 catalyst, which has the lowest acidity.

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Section: Introductionmentioning

confidence: 99%

Effect of Ni, La, and Ce Oxides on a Cu/Al₂O₃ Catalyst with Low Copper Loading for Ethanol Non‐oxidative Dehydrogenation

et al. 2021

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“…3,9,10,11 One mechanistic pathway would form three equivalents of formic acid from each glycerol molecule while another mechanism would lead to two equivalents of formic acid and one part of CO 2 through the glycolic acid intermediate. As the incipient product, Pd-glycerol adducts could be generated and oxidized to aldehyde 10 , which would undergo rapid C-C bond cleavage to release formic acid and another aldedyde 11 .…”

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confidence: 99%

Direct conversion of glycerol into formic acid via water stable Pd(II) catalyzed oxidative carbon–carbon bond cleavage

Pullanikat

Lee

Yoo

et al. 2013

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“…The DEE formation rates achieved in this study and those reported in previous works are listed in Table S1. The DEE formation rate achieved by our system (670 mmol g cat −1 h −1 ) is higher than those of the flow systems using heterogeneous catalysts (5–12 mmol g cat −1 h −1 ), [6b–d] photocatalytic systems (8–158 mmol g cat −1 h −1 ), [7a–d] and liquid phase reactions with homogeneous catalysts (13 mmol g cat −1 h −1 ) [18] . The high formation rate suggested that the electrocatalytic approach is potentially practical to synthesize DEE.…”

Section: Resultsmentioning

confidence: 60%

Upgrading of Ethanol to 1,1‐Diethoxyethane by Proton‐Exchange Membrane Electrolysis

2021

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The direct acetalization of ethanol is a significant challenge for upgrading bioethanol to value‐added chemicals. In this study, 1,1‐diethoxyethane (DEE) is selectively synthesized by the electrolysis of ethanol using a proton‐exchange membrane (PEM) reactor. In the PEM reactor, a Pt/C catalyst promoted the electro‐oxidation of ethanol to acetaldehyde. The Nafion membrane used as the PEM served as a solid acid catalyst for the acetalization of ethanol and electrochemically formed acetaldehyde. DEE was obtained at high faradaic efficiency (78 %) through sequential electrochemical and nonelectrochemical reactions. The DEE formation rate through PEM electrolysis was higher than that of reported systems. At the cathode, protons extracted from ethanol were reduced to H2. The electrochemical approach can be utilized as a sustainable process for upgrading bioethanol to chemicals because it can use renewable electricity and does not require chemical reagents (e. g., oxidants and electrolytes).

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Palladium-catalyzed oxidation of primary alcohols: Highly selective direct synthesis of acetals

Cited by 34 publications

References 33 publications

Effect of Ni, La, and Ce Oxides on a Cu/Al₂O₃ Catalyst with Low Copper Loading for Ethanol Non‐oxidative Dehydrogenation

Effect of Ni, La, and Ce Oxides on a Cu/Al₂O₃ Catalyst with Low Copper Loading for Ethanol Non‐oxidative Dehydrogenation

Direct conversion of glycerol into formic acid via water stable Pd(II) catalyzed oxidative carbon–carbon bond cleavage

Upgrading of Ethanol to 1,1‐Diethoxyethane by Proton‐Exchange Membrane Electrolysis

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Palladium-catalyzed oxidation of primary alcohols: Highly selective direct synthesis of acetals

Cited by 34 publications

References 33 publications

Effect of Ni, La, and Ce Oxides on a Cu/Al2O3 Catalyst with Low Copper Loading for Ethanol Non‐oxidative Dehydrogenation

Effect of Ni, La, and Ce Oxides on a Cu/Al2O3 Catalyst with Low Copper Loading for Ethanol Non‐oxidative Dehydrogenation

Direct conversion of glycerol into formic acid via water stable Pd(II) catalyzed oxidative carbon–carbon bond cleavage

Upgrading of Ethanol to 1,1‐Diethoxyethane by Proton‐Exchange Membrane Electrolysis

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Effect of Ni, La, and Ce Oxides on a Cu/Al₂O₃ Catalyst with Low Copper Loading for Ethanol Non‐oxidative Dehydrogenation

Effect of Ni, La, and Ce Oxides on a Cu/Al₂O₃ Catalyst with Low Copper Loading for Ethanol Non‐oxidative Dehydrogenation