1-Bromopentane → HCID 57152813, compound

Participants

Reaction Steps

Part A: To a solution of 2.0 g (8.6 mmol) of N-(2-hydroxyethyl)-4-methoxybenzenesulfonamide from Example 1 in 20 mL of anhydrous DMF, was added 3.58 g (25.9 mmol) of powdered potassium carbonate and then 1.96 g (13 mmol) of 1-bromopentane. After 24 hours, ethyl acetate and water was added, the organic layer separated and washed 3×s with brine, dried with sodium sulfate, filtered and stripped to afford 2.3 g of crude product. This was chromatographed on 150 g of silica gel using 20%-50% ethyl acetate/hexane to afford 2.12 g of the desired N-(hydroxyethyl)-N-pentyl-4-methoxybenzenesulfonamide, m/e=302 (M+H).

Provenance & Evidence