1-Cyclopentyl-2-propen-1-ol → 3-(3-Chloro-5-ethyl-4-methoxy-phenyl)-1-cyclopentyl-propan-1-one

Participants

Reaction Conditions

Reaction Steps

A mixture of 5-bromo-1-chloro-3-ethyl-2-methoxy-benzene (2 g, 8 mmol), 1-Cyclopentyl-2-propen-1-ol (1.31 g, 10.4 mmol), dichlorobis(triphenylphosphine)palladium (II) (110 mg, 0.16 mmol), and sodium bicarbonate (0.81 g, 9.6 mmol) in N-methylpyrrolidinone (15 mL) was heated to 140° C. under N2 for 5 h. The reaction mixture was partitioned between 1N HCl and EtOAc. The organic layer was washed with saturated NaHCO3, brine, dried over Na2SO4 and concentrated to a black oil. The oil was purified by flash column chromatography (0% to 10% EtOAc in hexanes) to give the desired product (1.9 g, 82%). 1H NMR (400 MHz, CDCl3): δ 1.20 (t, J=7.6 Hz, 3H), 1.53-1.81 (m, 8H), 2.65 (q, J=7.6 Hz, 2H), 2.74 (m, 2H), 2.79-2.87 (m, 3H), 3.81 (s, 3H), 6.90 (s, 1H), 7.03 (m, 1H).

Provenance & Evidence