Adsorption and Reactivity of Chiral Modifiers in Heterogeneous Catalysis: 1-(1-Naphthyl)ethylamine on Pt Surfaces
Adsorption and Reactivity of Chiral Modifiers in Heterogeneous Catalysis: 1-(1-Naphthyl)ethylamine on Pt Surfaces
复制标题
多相催化中手性修饰剂的吸附和反应活性:1-(1-萘基)乙胺在 Pt 表面上
DOI:
10.1021/acscatal.2c01627
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发表时间:
2022
期刊:
影响因子:
12.9
通讯作者:
Zaera, Francisco
中科院分区:
文献类型:
--
作者:
Wang, Zihao;Fernández-Escamilla, Héctor Noé;Guerrero-Sánchez, Jonathan;Takeuchi, Noboru;Zaera, Francisco
The adsorption from solution onto a Pt surface of 1-(1-naphthyl)ethylamine (1-NEA), a chiral modifier used to introduce enantioselectivity in catalytic hydrogenation reactions, as well as its subsequent chemical reactivity, was characterized by a combination of kinetic catalytic measurements, surface-science experiments, and quantum mechanics calculations. By using both1H NMR and gas chromatography/mass spectrometry detection, it was determined that 1-NEA can undergo H-D exchange with D2in solution when promoted by supported heterogeneous Pt catalysts.In situinfrared absorption spectroscopy studies at the solid–liquid interface afforded the detection of vibrational features indicative of the formation of N–D bonds, and quantum mechanics calculations helped with the peak assignment and provided evidence supporting an H-D exchange mechanism involving the formation of an intermediate-adsorbed protonated 1-NEA species. The reaction proved to be general, as it was observed with r- and s-1-NEA, r- and s-2-NEA, and cinchonine, and on Pt/SiO2and Pt/Al2O3catalysts. NEA adsorption and protonation through the amine N atom explain a number of reported but previously not fully understood observations and provide a way to envision the mechanism by which the NEA molecule bestows enantioselectivity to Pt hydrogenation catalysts.
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影响因子:
1.9
作者:
Yang Zeng;F. Masini;Anton M. H. Rasmussen;M. Groves;V. Albert;J. Boukouvalas;P. McBreen
通讯作者:
P. McBreen
影响因子:
--
作者:
Alexander D. Gordon;F. Zaera
通讯作者:
F. Zaera
DOI:
--
发表时间:
2019
期刊:
影响因子:
--
作者:
中村賀美;竹内孝江
通讯作者:
竹内孝江
影响因子:
15
作者:
Kubota, J;Zaera, F
通讯作者:
Zaera, F
影响因子:
15
作者:
Ilkeun Lee;Zhen Ma;S. Kaneko;F. Zaera
通讯作者:
F. Zaera