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The highly efficient air oxidation of aryl and alkyl boronic acids by a microwave-assisted protocol under transition metal-free conditions

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Abstract

Molecular oxygen is the most important green-oxidant due to its excellent properties. However, the effective utilization of molecular oxygen remains a major challenge in modern chemistry. Herein, we report the development a rapid, green and efficient microwave-assisted protocol for the air oxidation of boronic acids to phenols and alcohols under transition metal-free conditions. In the presence of KOH and DMSO, high yields of the expected phenols and alcohol were obtained with microwave-assistance, and a variety of functional groups were tolerated in this procedure. Notably, this transition metal-free method represents a breakthrough in both organic synthesis and green chemistry for the oxidative hydroxylation of boronic acids to phenols and alcohols.

Graphical abstract: The highly efficient air oxidation of aryl and alkyl boronic acids by a microwave-assisted protocol under transition metal-free conditions

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Publication details

The article was received on 13 Jun 2019, accepted on 30 Jul 2019 and first published on 31 Jul 2019


Article type: Communication
DOI: 10.1039/C9GC01965K
Green Chem., 2019, Advance Article

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    The highly efficient air oxidation of aryl and alkyl boronic acids by a microwave-assisted protocol under transition metal-free conditions

    W. Yin, X. Pan, W. Leng, J. Chen and H. He, Green Chem., 2019, Advance Article , DOI: 10.1039/C9GC01965K

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