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Group 6 Metal Carbonyl Complexes Supported by a Bidentate PN Ligand: Syntheses, Characterization, and Catalytic Hydrogenation Activity
Organometallics ( IF 2.8 ) Pub Date : 2020-11-24 , DOI: 10.1021/acs.organomet.0c00612
Thomas Vielhaber 1 , Kirill Faust 1 , Christoph Topf 1
Affiliation  

We report on the preparation of a series of phosphorus–nitrogen donor ligand complexes [M(CO)4(PN)], where M = Cr, Mo, W and PN is 2-(diphenylphosphino)ethylamine. The organometallic compounds were readily obtained upon reacting the respective metal hexacarbonyls with equimolar amounts of the pertinent ligand in the presence of tetraethylammonium bromide. The PN-ligated metal carbonyls were fully characterized by standard spectroscopic techniques and X-ray crystallography. The ability of the title compounds to function as homogeneous hydrogenation catalysts was probed in the reduction of acetophenone and benzaldehyde derivatives to yield the corresponding alcohols. The reaction setup was easily assembled by simply combining the components in the autoclave on the bench outside an inert-gas-operated glovebox system.

中文翻译:

双齿PN配体支持的6族金属羰基配合物:合成,表征和催化加氢活性

我们报告了一系列磷-氮供体配体[M(CO)4(PN)],其中M = Cr,Mo,W和PN是2-(二苯基膦基)乙胺。在四乙基溴化铵存在下,使各金属六羰基金属与等摩尔量的相关配体反应,即可轻松获得有机金属化合物。通过标准光谱技术和X射线晶体学对PN连接的金属羰基化合物进行了充分表征。在还原苯乙酮和苯甲醛衍生物以产生相应的醇中,探索了标题化合物用作均相氢化催化剂的能力。通过简单地在惰性气体操作的手套箱系统外部的工作台中将高压釜中的组件进行组合,可以轻松组装反应装置。
更新日期:2020-12-28
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