(6-Benzyloxy-1H-indol-3-yl)-oxo-acetic acid methyl ester → Methyl 2-(6-hydroxy-1H-indol-3-yl)acetate

関与物質

反応手順

A mixture of (6-benzyloxy-1H-indol-3-yl)-oxo-acetic acid methyl ester (1.45 g, 4.7 mmol) and Pd/C (10%, 0.9 g) in dioxane (38 mL) is degassed and filled with nitrogen for three times, then a solution of NaH2PO2 (6 g) in water (5 mL) is added dropwise at 100° C. The reaction mixture is heated overnight, filtered through celite and concentrated. The residue is taken into ethyl acetate, washed with water and brine, dried over sodium sulfate. Concentration and column chromatography on silica gel yields the title compound (600 mg).

情報源と証拠