1-Bromopentane → 4-Bromo-3-chloro-N,N-dipentylaniline

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Reaction Steps

1-Bromopentane (0.42 mL, 3.4 mmol) was added to a mixture of 4-bromo-3-chloroaniline (200 mg, 0.9 mmol) and potassium carbonate (199 mg, 1.4 mmol) in DMF (20 mL) and the reaction was heated to 13 0˜˜C overnight. The mixture was cooled, diluted with water (20 mL) and extracted with petroleum ether (3×25mL). The combined organic extracts were dried over sodium sulfate, filtered and concentrated under reduced pressure. The residue was purified via flash column chromatography using 9:1 petroleum ether:ethyl acetate as eluent to give N,N-Dipentyl-4-bromo-3-chloroaniline (1) (332 mg, 68%). 1HNMR (CDCI3) 67.02 (d, IH, ArH); 3.12 (t, 4H, 2×NCH2); 0.95 (t, 6H, 2×CH3). MS; 347 (M+H).

Provenance & Evidence