Novel Process for Mild Cathodic Deoxygenation of Amides and Esters
The present invention relates to a novel method for deoxygenation of carboxylic acids and carboxylic acid esters by cathodic reduction. The method is particularly suitable for the production of amines, which are used as starting materials for the manufacturing of a variety of chemical compounds and products.
There are various methods for deoxygenation of amides, wherein metal hydrides as reducing agents are generally used. This exothermic reaction is accompanied by the formation of hydrogen and therefore requires extensive safety precautions. In addition, appearing side products like oxides and hydroxides have to be separated which is time-consuming and costly. Beyond that, there are procedural devices for the electrochemical production of amines which however merely allow the synthesis of primary amines.
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