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From molecule to material: Mg₂Sn as hydrogenation catalyst

Claus, Peter ; Raif, Fabian ; Cavet, Sylvia ; Demirel-Gülen, Séval ; Radnik, Jörg ; Schreyer, Martin ; Fässler, Thomas Friedrich (2006)
From molecule to material: Mg₂Sn as hydrogenation catalyst.
In: Catalysis Communications, 7 (9)
doi: 10.1016/j.catcom.2006.01.027
Article, Bibliographie

Abstract

The liquid-phase hydrogenation of citral has been studied for the first time over an ionogenic Zintl phase, Mg2Sn. By using this unsupported alloy, citral conversion was 20% at 448 K and the product mixture was mainly comprised of geraniol, nerol, citronellal and citronellol. The product ratio of the formation of unsaturated allyl-type alcohols to the formation of citronellal + citronellol is similar to that obtained with the unsupported alloy Ru3Sn7 and a silica supported Ru–Sn catalyst. The results clearly indicate that the polar character of active sites is a prerequisite for the chemisorption of the polar C=O group and, thus, must be a key factor in controlling the selectivity of the hydrogenation of α,β-unsaturated aldehydes.

Item Type: Article
Erschienen: 2006
Creators: Claus, Peter ; Raif, Fabian ; Cavet, Sylvia ; Demirel-Gülen, Séval ; Radnik, Jörg ; Schreyer, Martin ; Fässler, Thomas Friedrich
Type of entry: Bibliographie
Title: From molecule to material: Mg₂Sn as hydrogenation catalyst
Language: English
Date: 2006
Journal or Publication Title: Catalysis Communications
Volume of the journal: 7
Issue Number: 9
DOI: 10.1016/j.catcom.2006.01.027
Abstract:

The liquid-phase hydrogenation of citral has been studied for the first time over an ionogenic Zintl phase, Mg2Sn. By using this unsupported alloy, citral conversion was 20% at 448 K and the product mixture was mainly comprised of geraniol, nerol, citronellal and citronellol. The product ratio of the formation of unsaturated allyl-type alcohols to the formation of citronellal + citronellol is similar to that obtained with the unsupported alloy Ru3Sn7 and a silica supported Ru–Sn catalyst. The results clearly indicate that the polar character of active sites is a prerequisite for the chemisorption of the polar C=O group and, thus, must be a key factor in controlling the selectivity of the hydrogenation of α,β-unsaturated aldehydes.

Divisions: 07 Department of Chemistry
07 Department of Chemistry > Ernst-Berl-Institut > Fachgebiet Technische Chemie > Technische Chemie II
07 Department of Chemistry > Ernst-Berl-Institut > Fachgebiet Technische Chemie
Date Deposited: 20 Mar 2009 08:55
Last Modified: 05 Mar 2013 09:18
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