Volume 132, Issue 7 pp. 2777-2781
Zuschrift

C1 Oxidation/C2 Reduction Isomerization of Unprotected Aldoses Induced by Light/Ketone

Dr. Yusuke Masuda

Dr. Yusuke Masuda

Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto, 615-8510 Japan

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Hiromu Tsuda

Hiromu Tsuda

Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto, 615-8510 Japan

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Prof. Dr. Masahiro Murakami

Corresponding Author

Prof. Dr. Masahiro Murakami

Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto, 615-8510 Japan

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First published: 10 December 2019
Citations: 5

Abstract

Unprotected aldoses in water undergo an isomerization reaction via a radical pathway when irradiated with light in the presence of water-soluble benzophenone. Whereas its anomeric carbon (C1) is oxidized to a carboxy group, the hydroxy group on the C2 carbon is replaced by hydrogen. The generated 2-deoxy lactones are readily reduced to the corresponding 2-deoxy aldoses, which are often contained in bioactive compounds.

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