Chemoselective Metal-Free Aerobic Alcohol Oxidation in Lignin
University of Wisconsin–Madison · Great Lakes Bioenergy Research Center
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Abstract
An efficient organocatalytic method for chemoselective aerobic oxidation of secondary benzylic alcohols within lignin model compounds has been identified. Extension to selective oxidation in natural lignins has also been demonstrated. The optimal catalyst system consists of 4-acetamido-TEMPO (5 mol %; TEMPO = 2,2,6,6-tetramethylpiperidine-N-oxyl) in combination with HNO3 and HCl (10 mol % each). Preliminary studies highlight the prospect of combining this method with a subsequent oxidation step to achieve C-C bond cleavage.
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638
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- 26.42
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- 100%
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5Topics & keywords
Topics
Keywords
- Chemistry
- Lignin
- Alcohol oxidation
- Catalysis
- Bond cleavage
- Alcohol
- Organic chemistry
- Metal
UN Sustainable Development Goals
- Clean water and sanitation
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