Aluminium lithium hydride → (4-Benzyloxy-6-fluoro-naphthalen-2-yl)-methanol

Participants

Reaction Steps

To a suspension of LiAlH4 (1.76 g, 46.4 mmol) in dry THF (20 mL) was added a solution of 4-benzyloxy-6-fluoro-naphthalene-2-carboxylic acid methyl ester (4.80 g, 15.5 mmol) in THF (30 mL) drop wise at 0° C. under nitrogen. The reaction mixture was stirred at room temperature for 3 hours. The reaction mixture was quenched through the addition of an aqueous solution of HCl (50%; 50 mL) and the resulting mixture was filtered through a bed of celite. The filtrate was extracted with ethyl acetate (2×100 mL). The combined organic extracts were washed with water (30 mL) followed by brine (30 mL), dried and concentrated in vacuo to obtain (4-benzyloxy-6-fluoro-naphthalen-2-yl)-methanol (3.6 g, 82.2%). The crude product was pure enough to proceed to the next step without further purification.

Provenance & Evidence