Sodium hydride → HCID 18317347, compound

Participants

Reaction Steps

To a suspension of 60% sodium hydride (0.13 g, washed with hexane thrice) in dimethylformamide (10 ml) was added 3-ethyl-6-phenyl-4,5,6,7-tetrahydroindol-4-one (0.64 g), and the mixture was stirred at room temperature for 30 minutes. To the mixture was added a solution of methanesulfonylchloride (0.34 g) in dimethylformamide (1 ml), and the mixture was stirred at the same temperature for 24 hours and then at 40° C. for 5 hours. Under reduced pressure, the solvent was evaporated, and the residue was dissolved in ethyl acetate. The solution was washed with water and saturated brine, dried with magnesium sulfate and concentrated under reduced pressure. The residue was recrystallized from diisopropylether and hexane to give colorless crystals of 3-ethyl-1-methanesulfonyl-6-phenyl-4,5,6,7-tetrahydroindol-4-one (0.26 g).

Provenance & Evidence