反应详情

3-(2-Benzyl-2-aza-bicyclo[3.3.1]non-5-yl)-phenylamine (2.71 g, 8.84 mmol) stirred in pyridine (25 ml) at 0° C. was charged with 2-methoxy-ethanesulfonyl chloride (2.1 g, 13.26 mmol) dropwise causing a color change from yellow to bright orange. The reaction was allowed to warm to room temperature gradually and stirred 18 h. The reaction mixture was diluted with toluene and concentrated in vacuo. The residue was dissolved in CH2Cl2 and washed with saturated aqueous NaHCO3 solution (100 mL). The aqueous layer was extracted with CH2Cl2 (2×50 ml) and the organic layer was concentrated to an oil. This was dissolved in EtOAc which caused an oil to separate. The EtOAc layer was separated and washed with saturated aqueous NaHCO3 solution (100 mL). The aqueous layer was extracted with EtOAc (2×50 ml) and the combined organic layer was washed with saturated aqueous NaCl solution (50 ml), dried over Na2SO4, filtered and concentrated to a crude orange liquid (3.77 g, ˜100%). (TLC 75% EtOAc/hexanes Rf 0.48);

1. concentrationconcentrated in vacuo
2. dissolutionThe residue was dissolved in CH2Cl2
3. washwashed with saturated aqueous NaHCO3 solution (100 mL)
4. extractionThe aqueous layer was extracted with CH2Cl2 (2×50 ml)
5. concentrationthe organic layer was concentrated to an oil
6. dissolutionThis was dissolved in EtOAc which
7. customto separate
8. customThe EtOAc layer was separated
9. washwashed with saturated aqueous NaHCO3 solution (100 mL)
10. extractionThe aqueous layer was extracted with EtOAc (2×50 ml)
11. washthe combined organic layer was washed with saturated aqueous NaCl solution (50 ml)
12. dry with materialdried over Na2SO4
13. filtrationfiltered
14. concentrationconcentrated to a crude orange liquid (3.77 g, ˜100%)