反应详情

温度

50 °C

Trimethylsulfoxonium iodide (173.8 mg, 0.789 mmol) was added to a suspension of sodium hydride (94.76 mg, 4.12 mmol) (60% dispersion in oil) in THF (4.0 mL) at room temperature. The mixture was stirred for 15 min after which time a solution of (Z)-5-fluoro-3-((3-iodo-1H-indazol-6-yl)methylene)indolin-2-one (160 mg, 0.394 mmol) in THF (2.4 mL) was added. The solution was stirred at 50° C. for 7 h prior to quenching the reaction mass over 10% NH4Cl solution (15 mL) at room temperature. The product was extracted using ethyl acetate (15 mL×2) and the organic layer was dried over Na2SO4 and evaporated in vacuo. Trituration with hexane (5 mL) gave the title compound as a cream solid (89 mg, 54%). 1H NMR (400 MHz, DMSO-d6) δ 13.50 (s, 1H), 10.65 (s, 1H), 7.50 (s, 1H), 7.31 (d, 1H, J=8.4 Hz), 7.00 (d, 1H, J=8.4 Hz), 6.85-6.81 (m, 2H), 5.81 (d, 1H, J=8.4 Hz), 3.22 (m, 1H), 2.43 (m, 1H), 2.01 (m, 1H); MS ESI 420.0 [M+H]+, calcd for [C17H11FIN3O+H]+ 420.0.

1. additionwas added
2. customto quenching the reaction mass over 10% NH4Cl solution (15 mL) at room temperature
3. extractionThe product was extracted
4. dry with materialthe organic layer was dried over Na2SO4
5. customevaporated in vacuo