反应详情

2-(2-fluoroethyl)-6-(methyloxy)-7-nitro-1,2,3,4-tetrahydroisoquinoline (assumed 1.07 mmol from previous reaction) was dissolved in ethyl acetate (5 mL), treated with 10% palladium on carbon (50 mg, Aldrich), and then diluted with methanol (10 mL). The mixture was stirred under 60 psi of hydrogen pressure for 16 h in a Fischer-Porter apparatus. The pressure was released, the reaction vessel evacuated, and back-filled with nitrogen twice. The mixture was filtered through celite and the filtrate was concentrated to provide 2-(2-fluoroethyl)-6-(methyloxy)-1,2,3,4-tetrahydro-7-isoquinolinamine (239 mg, 100%). 1H NMR (400 MHz, CDCl3) δ ppm 2.80-2.93 (m, 6 H), 3.51 (bs, 2 H), 3.61 (s, 2 H), 3.80 (s, 3 H), 4.58-4.75 (dt, JHF=47.6, J=4.9 Hz, 2 H), 6.37 (s, 1 H), 6.50 (s, 1 H).

1. customthe reaction vessel evacuated
2. additionback-filled with nitrogen twice
3. filtrationThe mixture was filtered through celite
4. concentrationthe filtrate was concentrated