Base‐Free Hydrogenation of Carbon Dioxide to Methyl Formate with a Molecular Ruthenium‐Phosphine Catalyst
作者:Niklas Westhues、Maurice Belleflamme、Jürgen Klankermayer
DOI:10.1002/cctc.201900627
日期:2019.11.7
Herein, a molecular ruthenium‐phosphine catalyst system for the effective base‐free methyl formate production from carbon dioxide is described. In detail, the novel [Ru(N‐triphosCy)(tmm)] complex, bearing sterically demanding cyclohexyl groups in the triphos‐ligand structure, enabled in combination with the Lewis acid Al(OTf)3 the selective transformation of carbon dioxide to methyl formate with unprecedented
本文描述了一种分子钌-膦催化剂体系,用于有效地从二氧化碳生产无碱甲酸甲酯。详细地讲,新型的[Ru(N- triphos Cy)(tmm)]配合物在三配体结构中带有空间要求的环己基,可与路易斯酸Al(OTf)3结合使用,从而将二氧化碳选择性转化为甲酸甲酯具有前所未有的活性。从机理的角度看,在第一步中形成了甲酸,并进行了连续的路易斯酸促进的甲醇与甲醇的酯化反应,生成甲酸甲酯。这种二氧化碳的选择性转化为重要的C 1构建基块的通用工艺铺平了道路。