摘要:
The reaction of 3-iodobenzo[b]thiophene (1) with the potassium enolates of cyclohexanone (2a), acetone (2b), and acetophenone (2c) in DMSO for 1 h at room temperature in the dark, gave the desired alpha-hetaryl ketones (3a-c) in low yield. The thermally activated S(RN)1 reaction with the ion enolate (2a) was studied in mere detail and it was found that the radical chain S(RN)1 mechanism could compete with one of ionic character.