反应详情

6-Ethoxy-2-(4-nitro-phenyl)-1H-indole (4.5 g, 16 mmol), Cs2CO3 (7.8 g, 24 mmol), DMF (23 mL), and bromomethylcyclopropane (1.8 mL, 18 mmol) were stirred at 80° C. in a sealed tube for 16 hours. The reaction mixture was diluted with H2O and extracted with EtOAc. The organic layer was washed with H2O and brine and then dried and concentrated. Purification by silica gel chromatography (1:1 CH2Cl2/hexane) provided 1-cyclopropylmethyl-6-ethoxy-2-(4-nitro-phenyl)-1H-indole (4.73 g, 88%) as an orange solid.

1. extractionextracted with EtOAc
2. washThe organic layer was washed with H2O and brine
3. customdried
4. concentrationconcentrated
5. customPurification by silica gel chromatography (1:1 CH2Cl2/hexane)