Synthesis of benzo[<i>f</i>][1,2]thiazepine 1,1-dioxides based on the visible-light-mediated aza Paternò–Büchi reaction of benzo[<i>d</i>]isothiazole 1,1-dioxides with alkenes

Wang, Yi-Lin; Liu, Peng-Xiang; Zhang, Huan-Huan; Xu, Peng-Fei; Luo, Yong-Chun

doi:10.1039/d3cc03745b

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2024

2025

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Cited by 3 publications

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An Organic EnT Photocatalyst 4CzMeBN and the Application in the Synthesis of cis‐Fused Azetidines

Feng,

Liu,

Xiang

et al. 2024

Chemistry A European J

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A powerful EnT photocatalyst 4CzMeBN has been developed and utilized in the synthesis of cis‐fused azetidines via dearomative [2+2] cycloaddition under visible light. The photocatalyst 4CzMeBN is a donor‐acceptor cyanoarene and features high triplet state energy and long lifetime of triplet state, which would be an alternative to widely used EnT photocatalyst Ir[dF(CF3)ppy]2(dtbbpy)PF6. The photochemical [2+2] cycloaddition provides a facile method to synthesize valuable dihydroisoquinolone‐fused azetidines with high efficiency.

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