反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
CONDITIONS
反应条件
- 温度
- 90 °C
PROCEDURE
实验过程
A mixture of tert-butyl (3-(3-iodo-1-tosyl-1H-indol-5-yl)-1,2,4-thiadiazol-5-yl)carbamate (0.6 g, 1.0 mmol) and N-isopropyl-6-(tributylstannyl)pyrazin-2-amine (0.429 g, 1.0 mmol) in DMF (10 mL) was bubbled N2 gas for 15 min. To the mixture was added CuI (95 mg, 0.5 mmol.) and Pd(PPh3)4 (12 mg, 0.1 mmol) and N2 gas was bubbled for another 15 min. The reaction was heated at 90° C. for 1 h. The mixture was quenched with H2O (10 mL) and extracted with CHCl3 (2×25 mL). The organic layer was dried over anhydrous Na2SO4 and concentrated under reduced pressure. The crude was purified by neutral alumina column chromatography (eluent: 20% EtOAc in petroleum ether) to give tert-butyl (3-(3-(6-(isopropylamino)pyrazin-2-yl)-1-tosyl-1H-indol-5-yl)-1,2,4-thiadiazol-5-yl)carbamate (0.49 g, 81%). MS (ESI, pos. ion) m/z: 606.1 (M+1).
WORKUP
后处理
- customwas bubbled N2 gas for 15 min
- customwas bubbled for another 15 min
- customThe mixture was quenched with H2O (10 mL)
- extractionextracted with CHCl3 (2×25 mL)
- dry with materialThe organic layer was dried over anhydrous Na2SO4
- concentrationconcentrated under reduced pressure
- customThe crude was purified by neutral alumina column chromatography (eluent: 20% EtOAc in petroleum ether)