Journal
ADVANCED SYNTHESIS & CATALYSIS
Volume 352, Issue 6, Pages 967-970Publisher
WILEY-BLACKWELL
DOI: 10.1002/adsc.200900896
Keywords
alcohols; dehydrogenation; homogeneous catalysis; iron; metal hydrides; oxidation
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Funding
- NSF-REU [CHE-0754114]
- University of Cincinnati
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A (hydroxycyclopentadienyl)iron dicarbonyl hydride catalyzes the Oppenauer-type oxidation of alcohols with acetone as the hydrogen acceptor. Many functional groups are tolerant to the oxidation conditions. The same complex also catalyzes the dehydrogenation of diols to lactones. A mechanism involving the formation of iron-alcohol complexes and their rapid ligand exchange with free alcohols is proposed. The trimethylsilyl groups on the cyclopentadienyl ligand of the catalyst play a critical role in stabilizing the iron hydride and increasing the catalyst lifetime.
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