Bromocyclopentane → 2-Chloro-5-cyclopentyloxypyridine

Participants

Reaction Steps

Cyclopentyl bromide (690.3 mg, 4.63 mmol), 2-chloro-5-hydroxypyridine (500 mg, 3.86 mmol) and cesium carbonate (1.51 g, 4.63 mmol) were stirred in 30 ml of DMF at room temperature for 3 h. The reactants had not yet completely reacted. 50% of each of cyclopentyl bromide and cesium carbonate were added, and stirring was continued for 2 h. The reaction mixture was concentrated in vacuo, and the residue was taken up in ethyl acetate and water. The organic phase was separated off and concentrated. Yield: 737 mg (97%), M+H+: 198.08.

Provenance & Evidence