反应详情

A solution of N-(5-fluoro-2-(methylsulfonyl)phenyl)-1,2,3,4-tetrahydro-2-methylnaphthalen-1-amine (63.3 mg, 0.19 mmol), piperazine (328 mg, 3.79 mmol) and N,N-diisopropylethylamine (0.34 mL, 1.99 mmol) in N,N-dimethylformamide (3 mL) was stirred at 110° C. for 16 h. The reaction mixture was cooled down, poured over 10 mL of water and extracted with diethyl ether. After evaporation of solvent the crude product was purified by silica chromatography (10% methanol in dichloromethane) to yield 70 mg (92%) of desired product. 1H NMR (400 MHz, CDCl3): δ 7.61 (d, 1H), 7.29 (m, 1H), 7.14 (m, 3H), 6.46 (d, 1H), 6.27 (dd, 1H), 12.2 (d, 1H), 4.28 (t, 1H), 3.29 (m, 1H), 3.20 (m, 4H), 3.01 (m, 1H), 2.96 (m, 4H), 2.88 (s, 3H), 2.30-1.70 (m, 4H), 1.12 (d, 3H); MS (ESI) m/z: 400.1 (M++1).

1. temperatureThe reaction mixture was cooled down
2. extractionextracted with diethyl ether
3. customAfter evaporation of solvent the crude product
4. customwas purified by silica chromatography (10% methanol in dichloromethane)