
Efficient Catalysts for the Selective Hydrogenation of Unsaturated Aldehydes
Xingyue Yang, Shijie Zhou, Yusen Yang, Min Wei
Prog Chem ›› 2024, Vol. 36 ›› Issue (3) : 297-318.
Efficient Catalysts for the Selective Hydrogenation of Unsaturated Aldehydes
The selective hydrogenation of unsaturated aldehydes is an important process of fine chemical processing that is widely used in the fields of flavor, medicine and food production, agricultural product processing, and so on. However, the hydrogenation reactivity of current catalysts still needs to be improved and further modulation of catalyst structures is needed. Three design strategies for the selective hydrogenation catalysts are summarized in this paper, modifying the electronic properties of metal active sites, enhancing the synergistic effect between the metal active sites and the electrophilic sites, and utilizing the structural effect to change the adsorption strength and hydrogenation activity of C=O bond or C=C bond. The influences of hydrogen source types, reaction solvents, temperatures and hydrogen pressures on catalytic performance are also summarized. The density functional theory (DFT) calculation, the reaction kinetic model, and the structure-activity relationship of catalysts related to the selective hydrogenation of unsaturated aldehydes are summarized. In the final section, problems, and challenges in the selective hydrogenation of unsaturated aldehydes are discussed, and some feasible solutions are further proposed.
1 Introduction
2 Design strategy of catalysts
2.1 Modifying electronic properties of metal active sites
2.2 Enhancing the synergistic effect between the metal active sites and the electrophilic sites
2.3 Utilizing the structural effect
3 the influence of reaction conditions on The catalytic performance
3.1 Hydrogen source types
3.2 Reaction solvents
3.3 Reaction temperatures
3.4 Hydrogen pressures
4 The density functional theory calculation
5 Kinetic study of the hydrogenation of unsaturated Aldehydes
6 The hydrogenation mechanism of unsaturated aldehydes
7 Conclusion and outlook
selective hydrogenation / unsaturated aldehydes / dynamics study / structure-activity relationship / structural design
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