1,10-Phenanthroline → 3-(4-Phenoxyphenoxy)quinuclidine

Participants

Reaction Conditions

Reaction Steps

3-Hydroxy quinuclidine (Aldrich, 254 mg, 2 mmol) was treated with 1-iodo-4-phenoxy-benzene (Aldrich, 296 mg, 1 mmol), Cul (Strem Chemicals, 19 mg, 0.1 mmol), 1,10-phenanthroline (Aldrich, 36 mg, 0.2 mmol), and Cs2CO3 (660 mg, 2.0 mmol) in toluene (anhydrous, Aldrich, 10 mL) and heated at 110° C. for two days. After cooling to room temperature, the reaction mixture was diluted with ethyl acetate (50 mL) and washed with water (2×10 mL). The organic phase was concentrated and the title compound was purified by chromatography (SiO2, CH2Cl2:MeOH:NH3H2O, 90:10:1, Rf. 0.20) as oil (220 mg, yield, 75%). 1H NMR (MeOH-d4, 300 MHz) δ 1.45–1.58 (m, 1H), 1.64–1.85 (m, 2H), 2.00–2.15 (m, 1H), 2.20–2.30 (m, 2.70–3.10 (m, 5H), 3.34–3.40 (m, 1H), 4.52 (m, 1H), 6.83–6.98 (m, 6H), 7.03 (tt, J=7.5, 1.0 Hz, 1H), 7.20–7.41 (m, 2H) ppm. MS (DCl/NH3) m/z 296 (M+H)+.

Provenance & Evidence