Selective Synthesis of Primary Amines from Nitriles under Hydrogenation Conditions,Advanced Synthesis & Catalysis

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Selective Synthesis of Primary Amines from Nitriles under Hydrogenation Conditions
Advanced Synthesis & Catalysis ( IF 4.4 ) Pub Date : 2018-03-12 , DOI: 10.1002/adsc.201800102
Masatoshi Yoshimura ₁ , Akira Komatsu ₁ , Masaru Niimura ₁ , Yukio Takagi ₁ , Tohru Takahashi ₂ , Shun Ueda ₂ , Tomohiro Ichikawa ₂ , Yutaka Kobayashi ₂ , Hiroki Okami ₂ , Tomohiro Hattori _{2,

3} , Yoshinari Sawama ₂ , Yasunari Monguchi _{2,

4} , Hironao Sajiki ₂

Affiliation

The hydrogenation of aliphatic nitriles over Pd/C, Pd/Al₂O₃, and Pd−Au/Al₂O₃ catalysts were evaluated for the selective hydrogenation of aliphatic nitriles to the corresponding primary amines. The highest selectivity (>99%) toward primary amines was achieved when the reaction was carried out in acetic acid using 10 mol% of 25% Pd‐5% Au/Al₂O₃ under relatively low hydrogen pressure (0.8 MPa). Characterization of the catalysts by XRD, CO adsorption experiments, and EXAFS revealed that the excellent selectivity of 25% Pd‐5% Au/Al₂O₃ toward the synthesis of primary amines is determined by the electronic properties and/or the surface structure resulting from alloying Pd with Au.

中文翻译：

氢化条件下由腈选择性合成伯胺

评价了在Pd / C，Pd / Al ₂ O ₃和Pd-Au / Al ₂ O ₃催化剂上脂肪族腈的氢化作用，以将脂肪族腈选择性氢化为相应的伯胺。当在相对较低的氢气压力（0.8 MPa）下使用10 mol％的25％Pd-5％Au / Al ₂ O ₃在乙酸中进行反应时，对伯胺的选择性最高（> 99％）。通过XRD，CO吸附实验和EXAFS对催化剂进行表征表明，25％Pd-5％Au / Al ₂ O ₃的优异选择性 Pd与Au的合金化所产生的电子特性和/或表面结构决定了伯胺合成的方向。

更新日期：2018-03-12

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