反应详情

温度

110 °C

To a solution of 2-(5-{3-[2-(4-chloro-phenylamino)-ethylamino]-propylidene}-5,11-dihydro-10-oxa-1-aza-dibenzo[a,d]cyclohepten-7-yl)-propan-2-ol (0.4 g, 0.87 mmol) in toluene (6 mL) was added triethylamine (0.48 mL, 3.44 mmol) and 2,3-dibromopropionitrile (0.19 mL, 1.72 mmol) and reaction mixture was heated to 110° C. (reflux) and stirred overnight for 18 h. The reaction mixture was concentrated in vacuo and the residue was diluted with ethyl acetate and extracted with 1.0N NaOH solution. The aqueous layer was back extracted twice with ethyl acetate. The combined organics were dried over sodium sulfate and concentrated. The crude product was purified using a short plug of silica gel using ethyl acetate to give the desired product. 1H-NMR (CDCl3) δ: 1.05 (6H, s), 2.20–2.70 (8H, 2×m), 3.00 (1H, m), 3.10–3.40 (3H, 2×m), 4.50 (1H, br, s), 5.30 (2H, br, s), 6.20 (1H, t), 6.70–6.90 (3H, 2×d), 7.10–7.35 (4H, m), 7.50 (2H, d), 8.50 (1H, dd). ESI-MS m/z: 515 (M+1), UV retention time: 2.36 min.

1. temperature(reflux)
2. concentrationThe reaction mixture was concentrated in vacuo
3. additionthe residue was diluted with ethyl acetate
4. extractionextracted with 1.0N NaOH solution
5. extractionThe aqueous layer was back extracted twice with ethyl acetate
6. dry with materialThe combined organics were dried over sodium sulfate
7. concentrationconcentrated
8. customThe crude product was purified