1-(3-hydroxybenzo[b]thiophen-2-yl)ethanone and 1-(3-hydroxybenzo[b]thiophen-2-yl)propan-1-one via an anionic ortho-Fries rearrangement are described. The hydroxy ketones were used as key intermediates in the synthesis of benzothienopyranones.
一锅合成由邻甲基
硫烷基芳基N,N-
二乙基酰胺与1-(3-羟基苯并[ b ]
噻吩-2-基)乙酮和1合成(3-羟基苯并[ b ]
噻吩-2-基)芳基甲酮描述了经由阴离子邻-Fries重排的-(3-羟基苯并[ b ]
噻吩-2-基)
丙-1-酮。羟基酮用作
苯并噻吩并
吡喃酮合成中的关键中间体。