Toluene → 5-benzyloxy-6-isopropyl-1,3-dimethyl-1H-indole

関与物質

反応条件

反応手順

5-Benzyloxy-6-isopropyl-3-methyl-1H-indole (0.320 g, 1.15 mmol), KOH (0.264 g, 4.7 mmol), benzyl tributylammonium chloride (0.071 g, 0.230 mmol), and methyl iodide (0.107 mL, 1.72 mmol) were added to 3 mL of toluene. The resulting mixture was stirred for 4 hours at 90° C., cooled to room temperature, poured into water, and extracted with ethyl acetate 2 times. The combined organic layers were washed with water, dried (MgSO4), and evaporated in vacuo to provide a crude oil that was purified with flash chromatography (ethyl acetate/hexanes=1/9); yield 270 mg of 5-benzyloxy-6-isopropyl-1,3-dimethyl-1H-indole.

情報源と証拠