Synthesis of amines from nitrile hydrogenation on Co/SiO2: Effect of the substrate structure

IF 4.7 2区化学 Q2 CHEMISTRY, PHYSICAL

Applied Catalysis A: General Pub Date : 2025-04-01 DOI:10.1016/j.apcata.2025.120254

M. Agüero, D.J. Segobia, N.M. Bertero, A.F. Trasarti

引用次数: 0

Abstract

The liquid-phase hydrogenation of aliphatic (acetonitrile, isobutyronitrile and butyronitrile) and (benzonitrile and benzyl cyanide) nitriles was studied on Co(10%)/SiO₂ using ethanol, cyclohexane and toluene as solvents. The catalyst converted the aliphatic nitriles and benzyl cyanide into mainly the primary amine, whereas benzonitrile yielded a mixture of primary and secondary amines. A stronger adsorption of the benzonitrile and benzyl amine over the solid surface promoted the condensation reaction towards the secondary amine. The product distribution was also influenced by the nature of the solvent, particularly in the hydrogenation of aliphatic nitriles, where a stronger solvent-primary amine and solvent-catalyst interaction favored the production of primary amines.

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Co/SiO2腈加氢合成胺：底物结构的影响

以Co(10%)/SiO2为溶剂，乙醇、环己烷和甲苯为溶剂，研究了脂肪族（乙腈、异丁腈和丁腈）和（苯腈和苄基氰化物）腈的液相加氢反应。催化剂将脂肪族腈和苯氰主要转化为伯胺，而苯腈则生成伯胺和仲胺的混合物。固体表面对苯腈和苯胺的较强吸附促进了对仲胺的缩合反应。产物的分布也受到溶剂性质的影响，特别是在脂肪族腈的加氢过程中，溶剂-伯胺和溶剂-催化剂的相互作用更强，有利于伯胺的产生。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Catalysis A: General 化学-环境科学

CiteScore

9.00

自引率

5.50%

发文量

415

审稿时长

24 days

期刊介绍： Applied Catalysis A: General publishes original papers on all aspects of catalysis of basic and practical interest to chemical scientists in both industrial and academic fields, with an emphasis onnew understanding of catalysts and catalytic reactions, new catalytic materials, new techniques, and new processes, especially those that have potential practical implications. Papers that report results of a thorough study or optimization of systems or processes that are well understood, widely studied, or minor variations of known ones are discouraged. Authors should include statements in a separate section "Justification for Publication" of how the manuscript fits the scope of the journal in the cover letter to the editors. Submissions without such justification will be rejected without review.