2026-10-14T20:05:21Z https://www.scidb.cn/oai

10.57760/sciencedb.011jj 2026-09-13T20:14:40Z

2026-09-13 Anodic chlorine-mediated electrocatalytic conversion of aldehydes and nitrate to nitriles in a biphasic system doi:10.57760/sciencedb.011jj en Electrocatalytic conversion of nitrate (NO3-) and aldehydes into aldoximes enables the valorization of nitrate pollutants toward the synthesis of organic nitrogenous chemicals. Nevertheless, further conversion of aldoximes into high-value nitriles still poses a critical challenge, due to the complex multistep reaction pathways and intrinsically unstable reaction intermediates. Herein, we report a novel anodic chlorine-mediated electroreduction strategy for the one-pot conversion of NO3- and aldehydes to nitriles using ZnPc/CNTs as the catalyst. Cathodic semi-reduction of NO3- generates hydroxylamine (NH2OH), which undergoes condensation with aldehydes to form aldoximes, while anodically produced active chlorine species enable the chlorination of aldoximes to α-chlorooximes. Subsequent OH⁻-driven dehydrochlorination and electrocatalytic hydrodeoxygenation yield the target nitriles. The successful implementation of the overall reaction hinges on the cyclohexane gas buffer layer on top of the electrolyte that precisely regulates ClO⁻ concentration to match the kinetics of the cascade reaction, thereby achieving 99% selectivity and a maximum formation rate of 18.7 μmol·cm-2·h-1 for benzonitrile. Various other aromatic aldehydes are effectively converted to their corresponding nitriles by this strategy. This work bridges inorganic nitrogen recycling and organic synthesis, offering new guidelines for the efficient construction of C-N bonds. C-N coupling; nitrate reduction; nitriles synthesis; anodic chlorine; electrosynthesis 李丽军 王一帆 张玉艳 高余良 杨绪壮 谷晓俊 韩晨辉 PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset Science Data Bank