Diethylamine → 9-Benzyl-2-diethylaminomethyl-3-ethoxycarbonylimidazo[1,2-a]benzimidazole

Participants

Reaction Steps

Add 1.04 ml (10 mmol) of diethylamine to a hot solution of 9-benzyl-2-bromomethyl-3-ethoxycarbonylimidazo[1,2-a]benzimidazole (2.01 g, 5 mmol), prepared as described for the alkylated analogues in Khim. Farm. ZH 88, 22 (7), 815-9, in 20 ml of benzene. Heat at reflux for one hour, cool. Remove the resulting precipitate, evaporate the benzene, and the residue is recrystallised by hexane to yield the title compound.

Provenance & Evidence