The amino acids have extensive applications, and their productions from biomass‐derived feedstocks are very attractive. In this work, the synthesis of amino acids by amination of bio‐derived hydroxy acids with ammonia over different metallic nano‐catalysts supported on various supports is studied. It is found that Ru nano‐catalysts on the nitrogen‐doped carbon nanotubes (Ru/N−CNTs) have an outstanding performance for the reaction. Different hydroxy acids can be catalytically converted into the corresponding amino acids with yields up to 70.0 % under mild conditions, which is higher than those reported. The reasons for the high efficiency of the catalyst are investigated, and the reaction pathway is proposed on the basis of control experiments.

中文翻译：

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在N掺杂的碳纳米管上负载Ru，通过用氨将生物衍生的羟基酸胺化，可以高效合成氨基酸。

氨基酸具有广泛的用途，并且它们是由生物质原料生产的。在这项工作中，研究了在各种载体上负载的不同金属纳米催化剂上，氨与生物衍生羟基酸的氨化反应合成氨基酸。发现氮掺杂碳纳米管（Ru / N-CNTs）上的Ru纳米催化剂具有出色的反应性能。在温和的条件下，不同的羟基酸可以催化转化为相应的氨基酸，产率高达70.0％，高于报道的那些。研究了催化剂高效的原因，并在控制实验的基础上提出了反应途径。