Micro and mesoporous materials based on zeolite Y for the florol synthesis via the prins cyclization of isoprenol

Pascal Demuth; Luis A. Gallego Villada; Päivi Mäki-Arvela; Ramin Majidov; Zuzana Vajglova; Narendra Kumar; Ilari Angervo; Mika Lastusaari; Kari Eränen; Dmitry Murzin

doi:10.1016/j.cattod.2024.114695

Micro and mesoporous materials based on zeolite Y for the florol synthesis via the prins cyclization of isoprenol

Pascal Demuth, Luis A. Gallego Villada^*, Päivi Mäki-Arvela, Ramin Majidov, Zuzana Vajglova, Narendra Kumar, Ilari Angervo, Mika Lastusaari, Kari Eränen, Dmitry Murzin^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

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Abstract

Several parents and Sn-modified microporous and mesoporous catalysts were investigated in Prins cyclization of isoprenol with isovaleraldehyde for the production of the desired cis isomer of pyranol, Florol ® using dimethylcarbonate as a solvent in the temperature range of 30–60 °C. The highest selectivity to pyranols, 70% was obtained over microporous Sn-Y-80 (number denotes SiO ₂/Al ₂O ₃ ratio) at 40 °C, while 64% selectivity to pyranols was obtained at 99% conversion over dealuminated H-Y-80 exhibiting mesoporosity and low Brønsted to Lewis acid ratio of 0.16. For microporous catalysts even higher BA/LA ratio and large amounts of Lewis acid sites were beneficial, as was the case for H-Y-30 modified with SnCl ₂, because the reaction occurred mainly on the outer surface of the catalyst.

Original language	American English
Article number	114695
Journal	Catalysis Today
Volume	433
Issue number	114695
DOIs	https://doi.org/10.1016/j.cattod.2024.114695
Publication status	Published - 1 May 2024
MoE publication type	A1 Journal article-refereed

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https://urn.fi/URN:NBN:fi-fe2024081264471

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title = "Micro and mesoporous materials based on zeolite Y for the florol synthesis via the prins cyclization of isoprenol",

abstract = "Several parents and Sn-modified microporous and mesoporous catalysts were investigated in Prins cyclization of isoprenol with isovaleraldehyde for the production of the desired cis isomer of pyranol, Florol {\textregistered} using dimethylcarbonate as a solvent in the temperature range of 30–60 °C. The highest selectivity to pyranols, 70% was obtained over microporous Sn-Y-80 (number denotes SiO 2/Al 2O 3 ratio) at 40 °C, while 64% selectivity to pyranols was obtained at 99% conversion over dealuminated H-Y-80 exhibiting mesoporosity and low Br{\o}nsted to Lewis acid ratio of 0.16. For microporous catalysts even higher BA/LA ratio and large amounts of Lewis acid sites were beneficial, as was the case for H-Y-30 modified with SnCl 2, because the reaction occurred mainly on the outer surface of the catalyst.",

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T1 - Micro and mesoporous materials based on zeolite Y for the florol synthesis via the prins cyclization of isoprenol

AU - Demuth, Pascal

AU - Gallego Villada, Luis A.

AU - Mäki-Arvela, Päivi

AU - Majidov, Ramin

AU - Vajglova, Zuzana

AU - Kumar, Narendra

AU - Angervo, Ilari

AU - Lastusaari, Mika

AU - Eränen, Kari

AU - Murzin, Dmitry

PY - 2024/5/1

Y1 - 2024/5/1

N2 - Several parents and Sn-modified microporous and mesoporous catalysts were investigated in Prins cyclization of isoprenol with isovaleraldehyde for the production of the desired cis isomer of pyranol, Florol ® using dimethylcarbonate as a solvent in the temperature range of 30–60 °C. The highest selectivity to pyranols, 70% was obtained over microporous Sn-Y-80 (number denotes SiO 2/Al 2O 3 ratio) at 40 °C, while 64% selectivity to pyranols was obtained at 99% conversion over dealuminated H-Y-80 exhibiting mesoporosity and low Brønsted to Lewis acid ratio of 0.16. For microporous catalysts even higher BA/LA ratio and large amounts of Lewis acid sites were beneficial, as was the case for H-Y-30 modified with SnCl 2, because the reaction occurred mainly on the outer surface of the catalyst.

AB - Several parents and Sn-modified microporous and mesoporous catalysts were investigated in Prins cyclization of isoprenol with isovaleraldehyde for the production of the desired cis isomer of pyranol, Florol ® using dimethylcarbonate as a solvent in the temperature range of 30–60 °C. The highest selectivity to pyranols, 70% was obtained over microporous Sn-Y-80 (number denotes SiO 2/Al 2O 3 ratio) at 40 °C, while 64% selectivity to pyranols was obtained at 99% conversion over dealuminated H-Y-80 exhibiting mesoporosity and low Brønsted to Lewis acid ratio of 0.16. For microporous catalysts even higher BA/LA ratio and large amounts of Lewis acid sites were beneficial, as was the case for H-Y-30 modified with SnCl 2, because the reaction occurred mainly on the outer surface of the catalyst.

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DO - 10.1016/j.cattod.2024.114695

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VL - 433

JO - Catalysis Today

JF - Catalysis Today

IS - 114695

M1 - 114695

ER -

Micro and mesoporous materials based on zeolite Y for the florol synthesis via the prins cyclization of isoprenol

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