反应详情

To a suspension of NaH in cold tetrahydrofuran (80 mg/20 mL), 5-amino-2-morpholinobenzyl alcohol (400 mg, 2 mmol) was added. The mixture was stirred for 15 minutes then allyl chloride (150 mg, 2 mmol) and tetrabutylammonium iodide (37 mg, 5 mol %) were added. The resulting mixture was stirred at room temperature for 2 hours then at 60° C. overnight. After cooling to room temperature, water was added (200 μL) and the mixture stirred for 10 minutes then diluted with ethyl acetate. The organic phase was washed sequentially with 10% aqueous ammonium chloride and brine, dried over anhydrous Na2SO4, filtered and concentrated to give a yellow solid. The crude product was purified with 50% ethyl acetate in petroleum spirit to obtain 3-((allyloxy)methyl)-4-morpholinobenzenamine as a light orange oil (250 mg, 50% yield). 1H NMR (300 MHz, CDCl3) δ 6.95 (d, J=8.3 Hz, 1H), 6.82 (d, J=2.7 Hz, 1H), 6.61 (dd, J=8.2, 2.7 Hz, 1H), 6.10-5.90 (m, 1H), 5.34-5.28 (m, 1H), 5.23 (dd, J=10.5, 1.9 Hz, 1H), 4.57 (s, 2H), 4.07-4.05 (m, 2H), 3.80 (t, J=4.8 Hz, 4H), 3.55 (br s, 2H), 2.83 (t, J=4.6 Hz, 4H). LC-ESI-MS (method B) rt 5.91 min.; m/z 249.3 [M+H]+.

1. additionwas added
2. stirringThe resulting mixture was stirred at room temperature for 2 hours
3. customat 60° C.
4. customovernight
5. stirringthe mixture stirred for 10 minutes
6. washThe organic phase was washed sequentially with 10% aqueous ammonium chloride and brine
7. dry with materialdried over anhydrous Na2SO4
8. filtrationfiltered
9. concentrationconcentrated
10. customto give a yellow solid
11. customThe crude product was purified with 50% ethyl acetate in petroleum spirit