Water → HCID 21966456, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of powdered KOH (1.3 g, 23.13 mmol) in DMSO (25 mL) was stirred at 0° C. for 5 minutes. N-(2-bromo-5-methoxy-4-methyl-phenyl)-isobutyramide (3.30 g, 11.56 mmol) was added cautiously followed immediately by the addition of benzylbromide (2.75 mL, 23.13 mmol) and the reaction stirred at room temperature for 48 hrs. Water was added and the mixture extracted with ethyl acetate. The organic extract was washed successively with water and brine, dried over MgSO4, filtered and evaporated. The residue was chromatographed on silica gel (20% ethyl acetate in hexane) to give 4.3 g of N-benzyl-N-(2-bromo-5-methoxy-4-methyl-phenyl)-isobutyramide (99% yield). 1H NMR (300 MHz; CDCl3): 1.02 (d, J=6.6 Hz, 3 H), 1.15 (d, J=6.6 Hz, 3 H), 2.16 (s, 3 H), 2.29 (m, 1 H), 3.43 (s, 3 H), 3.85 (d, J=14.1 Hz, 1 H), 5.75 (d=14.1 Hz, 1 H), 6.02 (s, 1 H), 7.18–7.27 (m, 5 H), 7.38 (s, 1 H).

Provenance & Evidence