1,3-Benzodioxole-5-carboxaldehyde, 7-methoxy- → 1-(7-Methoxy-benzo[1,3]dioxol-5-yl)-ethanol

Participants

Reaction Steps

A solution of 7-Methoxy-benzo[1,3]dioxole-5-carbaldehyde (I) (1.8 g, 10 mmol) in THF (20 mL) was cooled to −78° C. A solution of methylmagnesium chloride in THF (5.0 mL of 3M, 15 mmol) was added to the solution of i in THF in a dropwise fashion. The reaction was quenched by the addition of HCl (1N, aqueous) and extracted with ethyl acetate. The organic layer was washed with brine, dried over Na2SO4 and concentrated in vacuo. The crude product was purified by flash chromatography (silica gel; 40%-60% ethyl acetate in hexanes) to afford 2 (0.89 g, 45%).

Provenance & Evidence