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Updated: Jun 1, 2026

A Two-Step Protocol for Umpolung Functionalization of Ketones Via Enolonium Species
Published on: August 16, 2018
2-(4-Fluoro-phen-yl)-5,6-methyl-enedi-oxy-3-methyl-sulfinyl-1-benzofuran
Abstract:
In the title compound, C(16)H(11)FO(4)S, the O atom and the methyl group of the methyl-sulfinyl substituent are located on opposite sides of the mean plane through the 5,6-(methyl-enedi-oxy)benzofuran fragment. The 4-fluoro-phenyl ring is rotated out of the 5,6-(methyl-enedi-oxy)benzofuran plane, making a dihedral angle of 29.90 (6)°. In the crystal structure, both inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into centrosymmetric dimers. The combination of C-H⋯O hydrogen bonds result in chains running along [1].
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