5-Chloro-2-methyl-3-phenylsulfonyl-1-benzofuran

Abstract

The title compound, C15H11ClO3S, was prepared by the oxidation of 5-chloro-2-methyl-3-phenylsulfanyl-1-benzofuran with 3-chloroperoxybenzoic acid. There are two symmetry-independent molecules in the asymmetric unit. The dihedral angles formed by the phenyl ring and the plane of the benzofuran system are 77.80 (8) and 78.34 (8)°. The crystal structure is stabilized by aromatic π–π stacking interactions between the furan ring and the benzene rings of neighbouring benzofuran fragments from two symmetry-independent molecules; the centroid–centroid distances within the stacks are 3.689 (4), 3.702 (4), 3.825 (4) and 3.826 (4) Å. Additionally, the stacked molecules exhibit inter- and intramolecular C—H...O interactions.