Herein we report a green and sustainable electrochemical oxidative dearomatization of 2-arylthiophenes. The variation of substitution patterns affords easy access to both C2/C3 and C2/C5 difunctionalized dearomative products. The synthetic utility of the resulting dihydrothiophenes is further demonstrated by the concise synthesis of a pyridazinone analog with interesting vasodilator activity.
Z. Shi, H. Lu, N. Li, Y. Yuan, Z. Li and K. Ye, Org. Chem. Front., 2022, 9, 2921 DOI: 10.1039/D2QO00312K
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