反应详情

温度

140 °C

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, 8 H), 1.62 (s, 6 H), 2.74–2.78 (m, 2 H), 2.82–2.89 (m, 2 H), 6.84–6.88 (m, 1 H), 6.93–6.95 (m, 1 H), 7.40–7.44 (m, 1 H).

1. temperaturewas cooled down to room temperature
2. extractionextracted with EtOAc (3×50 mL)
3. washThe combined organic extracts were washed with brine
4. dry with materialdried with Na2SO4
5. customevaporated to dryness
6. customThe mixture was purified by flash column chromatography (10–50% EtOAc in hexanes)