反应详情

温度

100 °C

2-Amino-5-chloro-3-nitro-phenyliodide (1.5 g, 4.90 mmol) obtained in Step 1 and 1-phenyl-2-trimethylsilylacetylene (4.3 g, 24.50 mmol) were dissolved in DMF (50 mL), and thereto palladium acetate (0.11 g, 0.5 mmol), lithium chloride (0.21 g, 4.90 mmol) and triethylamine (2.48 g, 24.50 mmol) were added. The mixture was heated under stirring for 3 hours at 100° C. At the end of reaction, added water and extracted with ethylacetate. The extract was washed with saturated sodium chloride solution, dried over anhydrous magnesium sulfate and filtered. The solvent was removed under reduced pressure and the residue was separated by column chromatography to give 5-chloro-7-nitro-3-phenyl-2-trimethylsilyl-1H-indole (1.05 g, Yield 87%).

1. temperatureThe mixture was heated
2. customAt the end of reaction
3. extractionextracted with ethylacetate
4. washThe extract was washed with saturated sodium chloride solution
5. dry with materialdried over anhydrous magnesium sulfate
6. filtrationfiltered
7. customThe solvent was removed under reduced pressure
8. customthe residue was separated by column chromatography