Water → 4-(Hexyloxy)naphthalene-1-carbaldehyde

Participants

Reaction Conditions

Reaction Steps

POCl3 (3.22 g, 21 mmol) was dropwise added to a solution of compound 2 (4 g, 17.5 mmol) in anh. DMF (5 ml) at room temperature and under N2. The resulting dark red solution was heated to 100° C. for 3 hours. Concentrated AcONa solution (5 ml) was then added and heating was continued for 2 hours more. After being cooled to room temperature, water (100 ml) was added. The mixture was extracted with Et2O (2×150 ml), the ethereal combined fractions were washed with 10% HCl solution (100 ml), water (100 ml), dried over MgSO4, filtered and evaporated to dryness. Recrystallisation of the brown solid from EtOH afford 2.1 g (47%) of compound 3 as brownish crystals.

Provenance & Evidence