Hong Dae Choi, Pil Ja Seo, Byeng Wha Son
Sep 16, 2009
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Journal
Acta Crystallographica Section E: Structure Reports Online
Abstract
The title compound, C12H11FO3S, was prepared by alkaline hydrolysis of ethyl 2–(3–ethylsulfanyl–5–fluoro–1–benzofuran–2–yl) acetate. In the crystal structure, the carboxyl groups are involved in intermolecular O—H⋯O hydrogen bonds, which link the molecules into centrosymmetric dimers. These dimers are further packed into stacks along the b axis by aromatic π–π interactions between the furan ring and the benzene ring of neighbouring benzofuran ring systems [centroid–centroid distance = 3.684 (5) Å].