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Beilstein J. Org. Chem. 2026, 22, 192–204, doi:10.3762/bjoc.22.13
Graphical Abstract
Scheme 1: Previous reports (A‒C) and our work (D, E).
Scheme 2: Oxidation of 2-acetyldihydrothiophenes 1. Conditions: dihydrothiophenes 1 (0.12–0.21 mmol, 1.0 equi...
Scheme 3: Deacylation of 2-acetyldihydrothiophenes 1. Conditions: dihydrothiophenes 1 (0.11–0.18 mmol, 1.0 eq...
Scheme 4: Synthesis of dihydrothiophenes 5. Conditions: dihydrothiophenes 4 (0.13–0.22 mmol, 1.0 equiv), sodi...
Scheme 5: Control experiments.
Figure 1: HRMS analysis of the crude product.
Figure 2: UV–vis spectra of the crude mixture (5.6 mg of the crude mixture was dissolved in 15 mL of methanol...
Scheme 6: Proposed mechanism.