Abstract
Tert-butyl-substituted tetramethylcyclopentadiene [C5HMe t4 Bu] was reacted with Ru3(CO)12 to prepare [(η5-C5Me t4 Bu)Ru(CO)(μ-CO)]2. The complex was characterized by IR, 1H NMR, 13C NMR, elemental analysis, and single-crystal X-ray diffraction. The complex was investigated as a catalyst in the aerobic oxidation of alcohols to the corresponding aldehydes and ketones in the presence of 2,2’,6,6’-tetramethylpiperidine N-oxide (TEMPO) as co-oxidant. The combination of [(η5-C5Me t4 Bu)Ru(CO)(μ-CO)]2 and TEMPO afforded an efficient catalytic system for the aerobic oxidation of a variety of primary and secondary alcohols, giving the corresponding carbonyl compounds in good-to-excellent yields.
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Acknowledgements
The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (No. 21372061), the Hebei Natural Science Foundation of China (No. B2017205006), and the Key Research Fund of Hebei Normal University (No. L2017Z02).
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Hao, Z., Yan, X., Li, Z. et al. Efficient aerobic oxidation of alcohols to aldehydes and ketones using a ruthenium carbonyl complex of a tert-butyl-substituted tetramethylcyclopentadienyl ligand as catalyst. Transit Met Chem 43, 635–640 (2018). https://doi.org/10.1007/s11243-018-0251-3
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DOI: https://doi.org/10.1007/s11243-018-0251-3