反应详情

温度

95 °C

N-(6-Chloropyridin-2-yl)-N,4-dimethylbenzenesulfonamide (0.080 g, 0.27 mmol) was dissolved in 1,4-dioxane (6 mL), and N-(6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzo[d]thiazol-2-yl)acetamide (0.1 g, 0.3 mmol), tetrakis(triphenylphosphine)palladium (0) (0.04 g, 0.04 mmol) and 2M Na2CO3 (0.3 mL, 0.6 mmol) were added to the mixture. The flask was fit with a reflux condensor and placed into a pre-heated (95° C.) bath and stirred under an inert atmosphere overnight. The mixture was then allowed to cool to ambient temperature and diluted with DCM and saturated NaHCO3. The organic layers were collected by extracting with DCM three times, and the combined organic extracts were dried over sodium sulfate, filtered, and concentrated in vacuo. The crude was purified by silica gel chromatography (1-10% IPA/DCM) to give N-(6-(6-(N,4-dimethylphenylsulfonamido)pyridin-2-yl)benzo[d]thiazol-2-yl)acetamide as a tan solid. MS (ESI pos. ion) m/z: 453 (MH+). Calculated exact mass for C22H20N4O3S2: 452. 1H NMR (400 MHz, DMSO-d6): 8.35 (s, 1H), 7.93 (t, J=8.0 Hz, 2H), 7.83 (d, J=7.5 Hz, 1H), 7.74 (d, J=8.5 Hz, 1H), 7.58 (d, J=8.0 Hz, 2H), 7.48 (d, J=8.0 Hz, 1H), 7.37 (d, J=7.5 Hz, 2H), 3.38 (s, 3H), 2.36 (s, 3H), 2.22 (s, 3H).

1. temperatureto cool to ambient temperature
2. customThe organic layers were collected
3. extractionby extracting with DCM three times
4. dry with materialthe combined organic extracts were dried over sodium sulfate
5. filtrationfiltered
6. concentrationconcentrated in vacuo
7. customThe crude was purified by silica gel chromatography (1-10% IPA/DCM)