Acetalization of furfural with zeolites under benign reaction conditions

Rubio-Caballero, Juan Miguel; Saravanamurugan, Shunmugavel; Maireles‐Torres, Pedro; Riisager, Anders

doi:10.1016/j.cattod.2014.03.004

Cited by 81 publications

(64 citation statements)

References 27 publications

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“…These results suggest that the formation of DPMF via acetalization of F and 2‐propanol is closely related to the concentration of F, and that it can also be reversed as the reaction progresses. In this sense, it is noteworthy that acetalization is a reversible reaction via the hydrolysis of DPMF in the presence of strong acid sites . Therefore, water produced in the acetalization and etherification processes together with the acid sites present on the prepared catalysts could hydrolyse DPMF to reproduce F during the reaction.…”

Section: Resultsmentioning

confidence: 99%

Catalytic Transfer Hydrogenation of Furfural over Co₃O₄−Al₂O₃ Hydrotalcite‐derived Catalyst

et al. 2020

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The hydrogenation of furfural by catalytic hydrogen transfer to produce furfuryl alcohol has been investigated over a series of mixed oxides derived from hydrotalcite catalysts. Three different catalysts containing Ni, Co and Zn phases on an Al‐rich amorphous support were synthesized and characterised. The catalytic performances were evaluated in a batch stirred reactor using 2‐propanol as a solvent and hydrogen donor, with Co3O4−Al2O3 showing the highest activity and selectivity to FA (74 % yield; 97 % selectivity). The effects of temperature (T=120–180 °C) and reaction time (t=30 min–24 h) were also studied, reaching a FA maximum yield of 92 % at 150 °C after 24 h. The Co3O4−Al2O3 catalyst showed a loss of activity after the first run, which can be easily restored by a simple calcination treatment. The results establish a catalytic route to produce valuable furfuryl alcohol over 3d‐transition metal‐based catalysts without any external hydrogen supply.

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Section: Resultsmentioning

confidence: 99%

Catalytic Transfer Hydrogenation of Furfural over Co₃O₄−Al₂O₃ Hydrotalcite‐derived Catalyst

et al. 2020

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“…In this way, if furfuryl alcohol and i-propyl-furfuryl ether are considered together as products coming from the MPV reduction of the substrate, an outstanding combined yield of 94% (94% selectivity) towards furfural-reduction-derived products is obtained when operating at 130 °C. This involves a second feature that evidences the good catalytic behavior in MPV reactions, which is the absence of secondary by-products-obtained from side-reactions such as the acetalization of furfural [38], which is produced by reaction of furfural with alcohols in presence of weak acid catalysts. Remarkably, these a priori plausible by-products are absent in the reaction media even when operating with the maximum quantity of sacrificing alcohol, supporting the good selectivity of the Zr-SBA-15 catalysts towards H-transfer reactions.…”

Section: Mpv Reduction Of Furfuralmentioning

confidence: 89%

Zr-SBA-15 Lewis Acid Catalyst: Activity in Meerwein Ponndorf Verley Reduction

et al. 2015

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Zr-SBA-15 Lewis acid catalyst has demonstrated an outstanding catalytic activity in the reduction of several carbonyl compounds by means of Meerwein Ponndorf Verley (MPV) reaction, using several secondary alcohols, and showing a very high selectivity towards the desired products. Special focus was addressed in the catalytic activity of Zr-SBA-15 material in the production of furfuryl alcohol from furfural, which is an important reaction for the lignocellulosic biomass valorization. In this transformation, both the reaction temperature and the i-PrOH:Furfural molar ratio exert a positive influence on the rate of the MPV transformation, with the influence of the former being much higher.i-propyl-furfuryl ether, a by-product resulting from the etherification of the target product with the sacrificing alcohol, is also found together with the main product. The production of this side-product is highly influenced by the reaction temperature, so that low temperatures and high sacrificing alcohol to substrate molar ratios have to be applied to keep its production at low levels.

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“…In general, acetalization is a viable method to protect carbonyl functionalities in organic compounds [1] and important process in industry and has been widely used to produce active additive in fragrances [2]. The industrial needs of acetal compound especially to be used as additive in fragrances has prompted this study to find alternative ways for designing a simpler synthesis approach and environmentally friendly catalysts [3].…”

Section: Introductionmentioning

confidence: 99%

Cyclic Acetalization of Furfural on Porous Aluminosilicate Acid Catalysts

2018

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Acetalization of furfural with zeolites under benign reaction conditions

Cited by 81 publications

References 27 publications

Catalytic Transfer Hydrogenation of Furfural over Co₃O₄−Al₂O₃ Hydrotalcite‐derived Catalyst

Catalytic Transfer Hydrogenation of Furfural over Co₃O₄−Al₂O₃ Hydrotalcite‐derived Catalyst

Zr-SBA-15 Lewis Acid Catalyst: Activity in Meerwein Ponndorf Verley Reduction

Cyclic Acetalization of Furfural on Porous Aluminosilicate Acid Catalysts

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Acetalization of furfural with zeolites under benign reaction conditions

Cited by 81 publications

References 27 publications

Catalytic Transfer Hydrogenation of Furfural over Co3O4−Al2O3 Hydrotalcite‐derived Catalyst

Catalytic Transfer Hydrogenation of Furfural over Co3O4−Al2O3 Hydrotalcite‐derived Catalyst

Zr-SBA-15 Lewis Acid Catalyst: Activity in Meerwein Ponndorf Verley Reduction

Cyclic Acetalization of Furfural on Porous Aluminosilicate Acid Catalysts

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Catalytic Transfer Hydrogenation of Furfural over Co₃O₄−Al₂O₃ Hydrotalcite‐derived Catalyst

Catalytic Transfer Hydrogenation of Furfural over Co₃O₄−Al₂O₃ Hydrotalcite‐derived Catalyst