HYDROGENATION OF SUBSTITUTED ACROLEIN OVER ALUMINA-SUPPORTED RUTHENIUM CATALYSTS

被引：37
|
作者：
COQ, B
FIGUERAS, F
MOREAU, C
MOREAU, P
WARAWDEKAR, M
机构：
[1] Laboratoire de Chimie Organique Physique et Cinétique Chimique Appliquées, URA 418, CNRS, ENSCM, Montpellier Cedex, 34053
来源：
CATALYSIS LETTERS | 1993年 / 22卷 / 03期
关键词：
RUTHENIUM; BIMETALLICS; HYDROGENATION; UNSATURATED ALDEHYDES;
D O I：
10.1007/BF00810365
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The gas phase hydrogenation of acrolein, 2-methyl-2-propenal, 2-butenal and 3-methyl-2-butenal was studied on Ru/Al2O3 and RuM/Al2O3 catalysts (M = Sn, Fe, Zn, Ge, Sb). The specific activity increases when the second element is added to the parent Ru/Al2O3 catalyst. This was ascribed to the activation of the C=O bond by M(delta+) species. Tin is the only additive which promotes the allyl alcohol selectivity. When methyl groups are tagged on the C=C bond the selectivity to the unsaturated alcohol increased sharply due to the steric hindrance against the adsorption of the substrate via the C=C double bond.
引用
收藏
页码：189 / 195
页数：7
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