1,3-Dichloro-5,6-dihydro-4H-cyclopenta(c)thiophen-4-one → HCID 23434091, compound

Participants

Reaction Steps

To a stirred solution of 1,3-dichloro-5,6-dihydro-4H-cyclopenta(c)thiophene-4-one (250 mg, 1.21 mmol) in DME (7.5 mL) was added 2-fluorobenzeneboronic acid (177 mg, 1.27 mmol), saturated aqueous NaHCO3 solution (2.5 mL) and bis(triphenylphosphine)palladium(II)chloride (100 mg, 0.14 mmol) at room temperature under nitrogen. The mixture was heated at reflux temperature for 8 hours. The whole was extracted with ethyl acetate (50 mL×2), and the combined organic layers were washed with brine, dried over MgSO4, and concentrated in vacuo. The residue was purified by flash chromatography eluting with hexane-ethyl acetate (10:1) to provide the subtitle compound (118 mg, 37% yield).

Provenance & Evidence