反应详情

A mixture of 0.0500 g (0.200 mmol) of 2-methyl-N-[3-(4-piperidinyl)phenyl]propanamide, 0.100 g (0.480 mmol) of 4-chloro-3′,4′-dimethylbutyrophenone, 0.080 g (0.600 mmol) of K2CO3 and 0.090 g (0.600 mmol) of NaI in 5 mL of DMF was heated at reflux temperature for 18 hours. The reaction mixture was filtered, the filtrate was poured into 5 mL of water and washed with 3×5 mL of ethyl acetate. The combined organic extracts were dried (MgSO4), concentrated in vacuo and purified by preparative TLC (silica; 9.5:0.5, dichloromethane:methanol+1% isopropyl amine) to afford 0.067 g (80.0% yield) of the desired product: 1H NMR (400 MHz, CDCl3) δ 7.72 (d, 1H, J=8.0 Hz), 7.44 (s, 1H), 7.38 (d, 1H, J=8.0 Hz), 7.23-7.20 (m, 2H), 7.16 (s, 1H), 6.95 (d, 1H, J=6.8 Hz), 3.13-3.11 (m, 2H), 3.02 (t, 2H, J=7.0 Hz), 2.56-2.40 (m, 4H), 2.32 (s, 6H), 2.17-2.15 (m, 2H), 2.04-1.78 (m, 6H), 1.25 (d, 6H, J=6.8 Hz); ESMS m/e 421.3 (M+H)+.

1. temperaturewas heated
2. temperatureat reflux temperature for 18 hours
3. filtrationThe reaction mixture was filtered
4. additionthe filtrate was poured into 5 mL of water
5. washwashed with 3×5 mL of ethyl acetate
6. dry with materialThe combined organic extracts were dried (MgSO4)
7. concentrationconcentrated in vacuo
8. custompurified by preparative TLC (silica; 9.5:0.5, dichloromethane:methanol+1% isopropyl amine)