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

Autor: Mamoru Hyodo, Hitomi Iwano, Takayoshi Kasakado, Takahide Fukuyama, Ilhyong Ryu
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Micromachines, Vol 12, Iss 11, p 1307 (2021)
Druh dokumentu: article
ISSN: 2072-666X
DOI: 10.3390/mi12111307
Popis: High-power UV-LED irradiation (365 nm) effectively accelerated the decatungstate-anion-catalyzed oxidation of benzyl alcohol 1 to benzoic acid 3 via benzaldehyde 2. 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 3 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.
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