1-(2-Hydroxyethyl)piperazine → 2-[4-(2-hydroxyethyl)piperazin-1-yl]-1-phenyl-1H-indole-3-carboxaldehyde

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Reaction Steps

2-Chloro-1-phenyl-1H-indole-3-carboxaldehyde (2.55 g, 19.6 mmol), 4-(2-hydroxyethyl)-piperazine (1.00 g, 3.92 mmol) in dioxane (13 mL) is heated overnight at reflux. The cooled reaction is diluted with water and extracted with dichloromethane. The organic layer is dried, filtered and evaporated to a semi-solid that is triturated with ether to give the 2-[4-(2-hydroxyethyl)piperazin-1-yl]-1-phenyl-1H-indole-3-carboxaldehyde as a brownish solid. MS 350 (M+H).

Provenance & Evidence