Potassium Carbonate → HCID 71133753, compound

Participants

Reaction Steps

A solution of compound (20) (1.56 g, 3.89 mmol), 4-nitrophenethyl bromide (1.79 g, 7.78 mmol), anhydrous K2CO3 (1.61 g, 11.67 mmol) and KI (1.94 g, 11.67 mmol) dissolved in dry toluene (150 ml) was stirred for 24 hours. The solvent was evaporated from the reaction mixture under reduced pressure, and CH2Cl2 (250 ml) was added thereto. The resultant brown slurry was filtered through a celite pad, and washed with CH2Cl2 (2×30 ml). The solvent was evaporated from the combined filtrate under reduced pressure. The residue thus obtained was purified via alumina (basic) column chromatography using EtOAc/methanol (10:2) as an eluent to provide compound (25) as a yellow oil (1.46 g, 68% yield).

Provenance & Evidence