反应详情

6-((trans)-4-tert-butylcyclohexyloxy)-2-naphthaldehyde (200 mg, 0.64 mmol, 1 equiv), ethanamine (58 mg, 1.05 mmol, 2 equiv) and AcOH (62 mg, 1.05 mmol, 2 equiv) were dissolved in DCM (15 mL), and the mixture was stirred at r.t. for 2 h. Then NaBH3CN (101 mg, 1.9 mmol, 3 equiv) was added to the mixture and stirred for 16 h at r.t. The reaction mixture was washed by brine, dried over Na2SO4, and concentrated to give the title compound as a gray oil (250 mg, 100%). ESI-MS (M+1)+: 340.3. 1H NMR (400 MHz, CDCl3) δ: 7.73˜7.63 (m, 3H), 7.42˜7.31 (m, 1H), 7.16˜7.09 (m, 2H), 4.30˜4.21 (m, 1H), 3.91 (s, 2H), 2.73 (q, 2H), 2.31˜2.23 (m, 2H), 1.93˜1.83 (m, 2H), 1.49˜1.36 (m, 2H), 1.27˜1.18 (m, 2H), 1.15 (t, 3H), 1.12˜1.05 (m, 1H), 0.89 (s, 9H).

1. stirringstirred for 16 h at r.t
2. washThe reaction mixture was washed by brine
3. dry with materialdried over Na2SO4
4. concentrationconcentrated