Isomerization of 3-phenyl-1-propene (allylbenzene) over base catalysts

被引：13

作者：

Aramendía, MA ^{[1
]}

Borau, V ^{[1
]}

Jiménez, C ^{[1
]}

Marinas, A ^{[1
]}

Marinas, JM ^{[1
]}

Urbano, FJ ^{[1
]}

机构：

[1] Univ Cordoba, Dept Organ Chem, Cordoba 14014, Spain

来源：

JOURNAL OF CATALYSIS | 2002年 / 211卷 / 02期

关键词：

test reaction; 1-phenyl-1-propene; allylbenzene; MBOH; 2-methyl-3-butyn-2-ol; acid-base characterization; double-bond isomerization;

D O I：

10.1006/jcat.2002.3733

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：

Several magnesium containing catalysts were tested for the 2-methyl-3-butyn-2-ol (MBOH) test reaction in a microcatalytic pulse reactor. All solids showed a selectivity close to 100% toward products formed on basic sites (mainly acetone and acetylene) in the 433-623 K range. However, no correlation was found between molar conversion per gram of catalyst and basic site density, determined by temperature-programmed desorption-mass spectrometry of CO2 as the probe molecule. In the search for a process that fulfilled such a correlation, a new model reaction for base catalysts was found: isomerization of 3-phenyl-1-propene (allylbenzene) to 1-phenyl-1-propene (cis + trans). Therefore, a good correlation (r = 0.986) between molar conversion (per gram of catalyst) and basic site density was obtained at 523 K for all catalysts tested. (C) 2002 Elsevier Science (USA).

引用

页码：556 / 559

页数：4

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