反应详情

温度

50 °C

To a solution of 3-benzyl-5-{[N-(4-hydroxyphenyl)-methylamino]-methylene}-2-thioxothiazolidin-4-one (71 mg, 0.20 mmol) in DMF (1.0 mL, anhyd) was added anhyd K2CO3 (29 mg, 0.21 mmol) and 2-bromoethyl methyl ether (20 μL, 0.21 mmol). The reaction mixture was heated at 50° C. After 20 h the reaction mixture was cooled, diluted with CHCl3 (50 mL), washed with H2O (3×25 mL) and brine, dried over anhyd Na2SO4, concentrated and then chromatographed (silica gel, 0:100 to 20:80 EtOAc-DCM) to give the title product (60 mg, 73%) as a yellow solid. 1H-NMR (CDCl3): δ 7.73 (1H, s), 7.44 (2H, d), 7.21-7.30 (3H, m), 7.11 (2H, d), 6.97 (2H, d), 5.23 (2H, s), 4.15 (2H, m), 3.79 (2H, m), 3.48 (3H, s), 3.47 (3H, s).

1. temperatureAfter 20 h the reaction mixture was cooled
2. washwashed with H2O (3×25 mL) and brine
3. dry with materialdried over anhyd Na2SO4
4. concentrationconcentrated
5. customchromatographed (silica gel, 0:100 to 20:80 EtOAc-DCM)