反应详情

温度

100 °C

To a solution of the above salt (66 mg, 0.2 mmol) and 3-(3-benzyl-4-oxothiazolidin-2-ylideneamino)-4-(ethylamino)benzonitrile (70 mg, 0.2 mmol) in DMF was added DBU (62 mL, 2 equiv) and the solution was heated to 100° C. for 48 h. Evaporation of solvent under high vacuum gave a crude, which was purified by chromatography on silica gel eluting with EtOAc-hexane (1:1) to give the title compound (3.6 mg). 1H-NMR indicated one isomer. 1H-NMR (CDCl3): δ 7.46 (2H, m), 7.22–7.36 (8H, m), 6.46 (1H, d), 5.17 (2H, s), 4.44 (1H, t), 3.79 (3H, s), 3.01 (2H, m), 0.88 (3H, t); MS (ESI): 495 (MH+).

1. customEvaporation of solvent under high vacuum
2. customgave a crude, which
3. customwas purified by chromatography on silica gel eluting with EtOAc-hexane (1:1)