Triethyloxonium tetrafluoroborate → 1-[(2-Chlorophenyl)carbonyl]-3-(ethyloxy)piperazine

Participants

Reaction Conditions

Reaction Steps

4-[(2-chlorophenyl)carbonyl]-2-piperazinone (I4) (676 mg, 2.83 mmol) was dissolved in dichloromethane (DCM) (10 mL) and was treated with triethyloxonium tetrafluoroborate (628 mg, 3.31 mmol). The solution was stirred at 25° C. for 16 hr and the solution partitioned between ethyl acetate (25 mL) and saturated sodium bicarbonate solution (25 mL). The aqueous phase was extracted with ethyl acetate (3×25 mL), combined extracts were washed with brine (25 mL), dried over anhydrous sodium sulfate and concentrated to a crude oil in 816 mg that was used in the subsequent step without further purification. Compound was not characterised but used directly in the next step.

Provenance & Evidence