1-Iodo-4-nitrobenzene → 2-(4-Nitrophenyl)-4-methoxybenzothiophene

Participants

Reaction Steps

To a suspension of anhydrous 1,2-dimethoxyethane (DME, 20 mL) containing a palladium tetrakis catalyst (Pd(PPh3)4 (49.7 mg, 0.043 mmol) was added 4-iodonitrobenzene (535.8 mg, 2.15 mmol), stirred at room temperature for 10 minutes, followed by adding 4-methoxybenzothiophene-2-boronic acid (95a, 470 mg, 2.26 mmol) and 2.0 M sodium carbonate aqueous solution (43 mL, 0.086 mmol). The reaction mixture was heated to reflux for 10 hours and cooled to room temperature, and ice water was added. The resulting product was extracted with ethyl acetate, evaporated after a treatment with, and purified by column chromatograph to give the target compound 2-(4-nitrophenyl)-4-methoxybenzothiophene (1-1, 560 mg, 87%).

Provenance & Evidence