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

页码：189 / 195

页数：7

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