Lewis Acid-Assisted Formic Acid Dehydrogenation Using a Pincer-Supported Iron Catalyst
Lewis Acid-Assisted Formic Acid Dehydrogenation Using a Pincer-Supported Iron Catalyst
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DOI：
10.1021/ja505241x
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发表时间：
2014-07-23
影响因子：
15
通讯作者：
Schneider, Sven
中科院分区：
文献类型：
--
作者：
Bielinski, Elizabeth A.;Lagaditis, Paraskevi O.;Schneider, Sven
甲酸（FA）是一种有吸引力的H-2存储化合物。目前，用于FA脱氢的最具活性的催化剂使用贵金属。在这里，我们报道了一种均相铁催化剂，当与刘易斯酸（LA）助催化剂一起使用时，其对于FA脱氢产生约1，000，000次周转。迄今为止，这是第一行过渡金属催化剂报告的最高周转数。初步研究表明，LA有助于关键的甲酸铁中间体的脱羧，也可用于增强CO2氢化的逆过程。
Formic acid (FA) is an attractive compound for H-2 storage. Currently, the most active catalysts for FA dehydrogenation use precious metals. Here, we report a homogeneous iron catalyst that, when used with a Lewis acid (LA) co-catalyst, gives approximately 1,000,000 turnovers for FA dehydrogenation. To date, this is the highest turnover number reported for a first-row transition metal catalyst. Preliminary studies suggest that the LA assists in the decarboxylation of a key iron formate intermediate and can also be used to enhance the reverse process of CO2 hydrogenation.