1-Cyclopentyl-2-propen-1-ol → 1-Cyclopentyl-3-[3-fluoro-4-(1-hydroxy-1-methylethyl)phenyl]propan-1-one

Participants

Reaction Conditions

Reaction Steps

To a solution of 2-(4-bromo-2-fluorophenyl)propan-2-ol (5.8 g, 25.0 mmol) in anhydrous NMP (63 mL) was added 1-Cyclopentyl-2-propen-1-ol (3.15 g, 25.0 mmol), NaHCO3 (4.2 g, 50 mmol) and PdCl2(PPh3)2 (350 mg, 2 mol %). The mixture was heated to 140° C. for 4 hours before it was cooled down to room temperature. The reaction was diluted with aqueous NH4Cl, extracted with EtOAc (3×50 mL). The combined organic extracts were washed with brine, dried with Na2SO4 and evaporated to dryness. The mixture was purified by flash column chromatography (10-50% EtOAc in hexanes) to give the product (2.5 g, 36% yield). 1H NMR (300 MHz, CDCl3) δ: 1.56-1.82 (m, 8H), 1.62 (s, 6H), 2.74-2.78 (m, 2H), 2.82-2.89 (m, 2H), 6.84-6.88 (m, 1H), 6.93-6.95 (m, 1H), 7.40-7.44 (m, 1H).

Provenance & Evidence