Choi Hong Dae, Seo Pil Ja, Son Byeng Wha, Lee Uk
Acta Crystallogr Sect E Struct Rep Online. 2009 Sep 16;65(Pt 10):o2482. doi: 10.1107/S160053680903671X.
The title compound, C(12)H(11)FO(3)S, was prepared by alkaline hydrolysis of ethyl 2-(3-ethyl-sulfan-yl-5-fluoro-1-benzofuran-2--yl) acetate. In the crystal structure, the carboxyl groups are involved in inter-molecular O-H⋯O hydrogen bonds, which link the mol-ecules into centrosymmetric dimers. These dimers are further packed into stacks along the b axis by aromatic π-π inter-actions between the furan ring and the benzene ring of neighbouring benzofuran ring systems [centroid-centroid distance = 3.684 (5) Å].
标题化合物C₁₂H₁₁FO₃S是由2-(3-乙基硫烷基-5-氟-1-苯并呋喃-2-基)乙酸乙酯经碱性水解制备而成。在晶体结构中，羧基参与分子间O-H⋯O氢键作用，这些氢键将分子连接成中心对称的二聚体。这些二聚体通过相邻苯并呋喃环系的呋喃环与苯环之间的芳香π-π相互作用，进一步沿b轴堆积成层[质心-质心距离 = 3.684 (5) Å]。
