Using High-Power UV-LED to Accelerate a Decatungstate-Anion-Catalyzed Reaction: A Model Study for the Quick Oxidation of Benzyl Alcohol to Benzoic Acid Using Molecular Oxygen
oleh: Mamoru Hyodo, Hitomi Iwano, Takayoshi Kasakado, Takahide Fukuyama, Ilhyong Ryu
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2021-10-01 |
Deskripsi
High-power UV-LED irradiation (365 nm) effectively accelerated the decatungstate-anion-catalyzed oxidation of benzyl alcohol <b>1</b> to benzoic acid <b>3</b> via benzaldehyde <b>2</b>. As the power of the UV-LED light increased, both the selectivity and yield of benzoic acid also increased. The reaction was finished within 1 h to give <b>3</b> in a 93% yield using 2 mol% of decatungstate anion catalyst. The combination of a flow photoreactor and high-power irradiation accelerated the oxidation reaction to an interval of only a few minutes.