反应详情

To a round bottomed flask was added 4-(2,4-bis{[tert-butyl(dimethyl)silyl]oxy}phenyl) cyclohexanone (817 mg). Dichloromethane (50 ml) was added followed by benzylamine (0.82 ml, 7.52 mmol) and activated 4 Å molecular sieves (10.0 g). The reaction mixture was stirred vigorously for 15 hr, then dichloromethane (50 ml) was added and the reaction mixture filtered through celite, washing with dichloromethane (50 ml). The filtrate was concentrated in vacuo affording the title compound (1.00 g, 86%) as a yellow oil. δH(CDCl3) 0.19 (6H, s), 0.26 (6H, s), 0.98 (9H, s), 1.03 (9H, s), 1.51 (1H, m), 1.72 (1H, m), 2.03 (2H, m), 2.45 (1H, m), 2.60 (1H, m), 3.04 (1H, m), 3.22 (1H, m), 4.55 (1H, d), 4.60 (1H, d), 6.31 (1H, d), 6.41 (1H, dd), 6.93 (1H, d), 7.33 (5H, m).

1. filtrationthe reaction mixture filtered through celite
2. washwashing with dichloromethane (50 ml)
3. concentrationThe filtrate was concentrated in vacuo