Selective Conversion of CO2 into Isocyanate by Low‐Coordinate Iron Complexes |
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| Authors: | Dr. Daniël L. J. Broere Dr. Brandon Q. Mercado Prof. Dr. Patrick L. Holland |
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| Affiliation: | Department of Chemistry, Yale University, New Haven, CT, USA |
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| Abstract: | Discovery of the mechanisms for selective transformations of CO2 into organic compounds is a challenge. Herein, we describe the reaction of low‐coordinate Fe silylamide complexes with CO2 to give trimethylsilyl isocyanate and the corresponding Fe siloxide complex. Kinetic studies show that this is a two‐stage reaction, and the presence of a single equivalent of THF influences the rates of both steps. Isolation of a thermally unstable intermediate provides mechanistic insight that explains both the effect of THF in this reaction, and the way in which the reaction achieves high selectivity for isocyanate formation. |
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| Keywords: | carbon dioxide fixation intermediate isolation iron isocyanate low-coordinate complexes |
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