Selective Hydrogenation of Carboxylic Acids to Alcohols or Alkanes Employing a Heterogeneous Catalyst,ACS Catalysis

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Selective Hydrogenation of Carboxylic Acids to Alcohols or Alkanes Employing a Heterogeneous Catalyst
ACS Catalysis ( IF 11.3 ) Pub Date : 2017-12-28 00:00:00 , DOI: 10.1021/acscatal.7b03484
Johannes Ullrich ₁ , Bernhard Breit ₁

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The chemoselective hydrogenation of carboxylic acids to either alcohols or alkanes is reported, employing a heterogeneous bimetallic catalyst consisting of rhenium and palladium supported on graphite. α-Chiral carboxylic acids were hydrogenated without loss of optical purity. The catalyst displays a reverse order of reactivity upon hydrogenation of different carboxylic functions with esters being less reactive than amides and carboxylic acids. This allows for chemoselective hydrogenation of an acid in the presence of an ester or an amide function.

中文翻译：

使用非均相催化剂将羧酸选择性加氢为醇或烷烃

据报道，使用由负载在石墨上的rh和钯组成的非均相双金属催化剂，将羧酸化学选择氢化为醇或烷烃。将α-手性羧酸氢化而不损失光学纯度。当不同的羧酸官能团氢化时，该催化剂表现出相反的反应顺序，其中酯的反应性低于酰胺和羧酸。这允许在酯或酰胺官能团的存在下酸的化学选择氢化。

更新日期：2017-12-28

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