Electroreduction of Benzaldehyde with a Metal-Ligand Bifunctional Hydroxycyclopentadienyl Molybdenum(II) Hydride

被引：16

作者：

Armstrong, Keith C. ^{[1
]}

Waymouth, Robert M. ^{[1
]}

机构：

[1] Stanford Univ, Dept Chem, Stanford, CA 94305 USA

来源：

ORGANOMETALLICS | 2020年 / 39卷 / 24期

基金：

美国国家科学基金会;

关键词：

ELECTROCATALYTIC HYDROGENATION; REDUCTION; COMPLEXES; KETONES; SELECTIVITY; CATALYSIS; MECHANISM; ALCOHOLS; IMINES;

D O I：

10.1021/acs.organomet.0c00630

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

An electrocatalytic system for the hydrogenation of benzaldehyde to benzyl alcohol and dibenzyl ether is described. The molybdenum hydride (C5Ph4OH)Mo(CO)(3)(H) (3) is shown to be the actively hydrogenating species. This hydride is demonstrated to be remarkably acid-stable, leading to a ca. 67% Faradaic efficiency for aldehyde reduction over hydrogen evolution despite strongly acidic and reducing conditions. Hydride 3 is prepared via 1-proton-2-electron reduction of cation [(C5Ph4OH)Mo(CO)(3)(CH3CN)][OTf] ([2][OTf]), which is generated by protonation of the Mo(0) precursor [(C5Ph4O)Mo(CO)(3)(L)](1).

引用

收藏

页码：4415 / 4419

页数：5

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