Florol synthesis via Prins cyclization over hierarchical beta zeolites - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Molecular Catalysis Année : 2022

Florol synthesis via Prins cyclization over hierarchical beta zeolites

Nataliya Shcherban
Roman Barakov
Basile Lasne
Päivi Mäki-Arvela
  • Fonction : Auteur
Mariya Shamzhy
Johan Wärnå
  • Fonction : Auteur
Dmitry Yu Murzin

Résumé

A set of hierarchical beta zeolites with variable Si/Al ratios, nanoparticle sizes, textural and acidic properties was prepared using a hydrothermal treatment of a concentrated alkali metal-free protic acid-containing zeolite gelprecursor. The obtained catalysts were investigated in the Prins cyclization of isovaleraldehyde with isoprenol yielding a commercially valuable tetrahydropyranol (Florol). The highest yield of the desired product (55.4%) was achieved over a zeolite catalyst possessing moderate acidity, developed mesoporosity (V meso 0.60 cm 3 /g) and a high external surface area (290 m 2 /g). Preferable formation of substituted tetrahydropyranol over weakand medium-strength Brønsted acid sites, on the one hand, and generation of the undesired dehydration products mainly over strong Brønsted acid sites, on the other hand, occurring in parallel routes were supported by the kinetic analysis of the reaction network.
Fichier principal
Vignette du fichier
Florol_Molecular_Catalysis_2022.pdf (2.14 Mo) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-03850935 , version 1 (14-11-2022)

Identifiants

Citer

Nataliya Shcherban, Roman Barakov, Basile Lasne, Päivi Mäki-Arvela, Mariya Shamzhy, et al.. Florol synthesis via Prins cyclization over hierarchical beta zeolites. Molecular Catalysis, 2022, 531, ⟨10.1016/j.mcat.2022.112683⟩. ⟨hal-03850935⟩
9 Consultations
36 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More