ChemCatChem誌に掲載決定！

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Visible-Light-Induced Desulfurative Coupling of Alkyl Benzothiazolyl Sulfides with Electron-Deficient Alkenes/Alkynes: Dual Role of Base-Activated Hantzsch Ester
Tetsuya Sengoku, Koki Matsune, Takuma Shimotori, Nagisa Kikuchi, Haruto Hijikata, Shun Nishioka, and Reo Takahashi
ChemCatChem, 2025, 17, e202401427. (DOI: 10.1002/cctc.202401427) Open Access
Front Cover

The Hantzsch ester anion acts not only as a photoreductant in the catalyst-free desulfurative coupling of alkyl benzothiazolyl sulfides with alkenes/alkynes, but also as a sacrificial reductant in an alternative organocatalytic reaction. The utility of this protocol is expanded to radical C-glycosylation, which includes a protective group-free substrate.

 

 

 

 

ChemRxiv, DOI:10.26434/chemrxiv-2024-bqs8z

EurJOC誌に掲載決定！

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Efficient Visible-Light-Induced π-Extension of Perylene Tetraesters: An Investigation on Regioselectivity
Keisuke Fujimoto, Shingo Miyano, Kenshin Norizuki, Toshiyasu Inuzuka, Tetsuya Sengoku, and Masaki Takahashi
European Journal of Organic Chemistry, 2024, 27, e202400734. (DOI: 10.1002/ejoc.202400734)

This study reports a visible-light-induced π-extension of perylene tetraesters using blue LED irradiation. The synthesis revealed how substituent effects on aromatic groups influence regioselectivity. Theoretical analysis highlighted bond alteration in aromatic rings as a key factor.

ChemistrySelect誌に掲載決定！

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Asymmetric Allylation of Aldoxime Derivatives with β-Amidoallylboronate in Water and Its Application to Divergent Synthesis of N-Hydroxy-γ-lactam and 1,2-Oxazinan-6-one
Tetsuya Sengoku, Wataru Anze, Naoya Hasegawa, Yuta Mizutani, Asahi Kubota, Toshiyasu Inuzuka, and Hidemi Yoda
ChemistrySelect 2024, 9, e202400120. (DOI: 10.1002/slct.202400120)

A highly enantioselective amido–functionalized allylation of aldoxime derivatives was achieved in water using O-Boc oximes as substrates under Zn(OH)2-chiral aminophenol catalysis. The products could be transformed into N-hydroxy-γ-lactam or 1,2-oxazinan-6-one, through an acidic treatment or a protection-acidic treatment sequence, respectively.

 

 

 

 

Journal Information: Impact factor 2.1 (Q3, JCR 2023)