1,5-Dibromopentane → HCID 67301893, compound

Participants

Reaction Conditions

Reaction Steps

To a stirred suspension of 4-hydroxyindole (10.0 g, 75.2 mmol) and 1,5-dibromo-pentane (26.0 g, 112.8 mmol) in N-methylpyrrolidinone (100 mL) was added potassium carbonate (16.0 g, 112.8 mmol). The resulting mixture was stirred at 90° C. for 4 hours and then quenched with water (30 mL) followed by extraction with ethyl acetate (30 mL×3). The organic layers were combined, washed with brine, and then concentrated under vacuum. The resulting residue was purified by silica gel chromotography to give 4-(5-bromo-pentyloxy)-1H-indole (14.0 g, 49.6 mmol, 66%) as a white solid.

Provenance & Evidence