2018
DOI: 10.1002/cjoc.201800380
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Insight into the Role of Additives in Catalytic Synthesis of Cyclohexylamine from Nitrobenzene

Abstract: Cyclohexylamine is a versatile intermediate in various chemical industries, which can be expediently synthesized via hydrogenation of aniline or nitrobenzene. However, such processes always suffer from side reactions. Many reports have found that specific additives can suppress the formation of side products, but the mechanism is still not clear. In this work, results suggest that it is the hydroxide ion of alkali metal hydroxides, rather than the cations, which plays a key role in suppressing the side reactio… Show more

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Cited by 28 publications
(12 citation statements)
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“…Amines are important chemical intermediates for fine chemicals and pharmaceuticals [1,2]. The selective hydrogenation of nitroarenes to anilines with hydrogen molecules and transfer hydrogenation with organic molecules as the hydrogen donor are extensively utilized approaches in practical applications [3][4][5][6][7][8][9][10][11]. Although numerous excellent homogeneous catalysts and noble metal heterogeneous catalysts have been developed for the catalytic conversion of nitroarenes to anilines, the difficulties in the separation and reuse of the homogeneous catalysts and the high cost of the noble metal heterogeneous catalysts hinder their further applications [12][13][14][15].…”
Section: Introductionmentioning
confidence: 99%
“…Amines are important chemical intermediates for fine chemicals and pharmaceuticals [1,2]. The selective hydrogenation of nitroarenes to anilines with hydrogen molecules and transfer hydrogenation with organic molecules as the hydrogen donor are extensively utilized approaches in practical applications [3][4][5][6][7][8][9][10][11]. Although numerous excellent homogeneous catalysts and noble metal heterogeneous catalysts have been developed for the catalytic conversion of nitroarenes to anilines, the difficulties in the separation and reuse of the homogeneous catalysts and the high cost of the noble metal heterogeneous catalysts hinder their further applications [12][13][14][15].…”
Section: Introductionmentioning
confidence: 99%
“…Metal oxides such as Al2O3 are well-established carriers for continuous hydrogenation in the industry. However, the metal catalysts directly supported by Al2O3 generally show the disadvantages of poor activity and selectivity, and yet some promoters such as alkali and alkaline earth metals (Na, K, Ca, Cs) are always added to improve the catalytic performance [7,[38][39][40]. These additives generally promote catalysts in three ways.…”
Section: Introductionmentioning
confidence: 99%
“…苯胺及其衍生物是一类重要的化工中间体, 可用于 制备染料、农药、医药及聚合物等一系列化合物. 由于 苯胺类化合物的巨大作用, 开发廉价、高效的苯胺制备 方法依然是有机合成和化工工业中一个重要的研究方 向 [1][2][3][4][5][6][7][8] . 硝基苯直接催化加氢制备苯胺无疑是一种最为 直接、原子经济及环境友好的合成方法 [9][10][11][12][13][14][15][16][17] .…”
Section: 引言unclassified