Direct Access to 3‑Thioether-Substituted Dihydrofuro[2,3‑b]benzofurans via Tandem Reactions of Sulfur Ylides and 2‑Nitrobenzofurans
The Journal of organic chemistry(2023)
Abstract
The synthesis of 3-thioether-substituted dihydrofuro[2,3-]benzofurans involving the [3 + 2] coupling of sulfur ylides with 2-nitrobenzofurans has been realized in moderate to good yields under mild conditions without any precious catalysts or additives. It is worth mentioning that the reutilization of the departed nitro-anion in the reaction process facilitates this new chemical transformation and presents a manner of high atom economy to provide products with a complex structure.
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Key words
dihydrofuro23-<i>b</i>benzofurans,sulfur ylides,tandem reactions,thioether-substituted
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