Ammonia → 1-[3-(Dimethylamino)propyl]-1-(4-fluorophenyl)-1,3-dihydro-2-benzofuran-5-carboximidamide

Participants

Reaction Conditions

Reaction Steps

A mixture of 1-[3-(dimethylamino)propyl]-1-(4-fluorophenyl)-1,3-dihydro-2-benzofuran-5-carbonitrile hydrobromide (citalopram hydrobromide, 300 mg, 1.0 equiv), copper(II) chloride (1.5 equiv) and ammonia (2.8 equiv) in ethanol (6 mL) was heated at 80° C. for 48 h. The mixture was cooled to room temperature and concentrated to dryness to give crude product (M/Z 342 [M++H]). This material was purified by re-suspending the crude product in fresh ethanol, filtration to remove insoluble material and slow evaporation under N2 to give the title product, 90 mg (23%) of a pale yellow powder.

Provenance & Evidence