Tetrahydrofuran → [3,4-Dimethoxy-2-(methoxymethyl)phenyl]boronic acid

Participants

Reaction Conditions

Reaction Steps

To a stirring solution of 1-bromo-3,4-dimethoxy-2-methoxymethoxy-benzene (1 g, 3.62 mmol) in tetrahydrofuran (15 mL) at −78° C., was added n-butyllithium (5.5 mL, 7.24 mmol) and stirred for 20 min to this trimethylborate (3.76 g, 36.23 mmol) was added and the resultant reaction mixture was stirred for 30 min at −78° C. The reaction mixture was quenched with saturated ammonium chloride solution and extracted with ethyl acetate (3×). The combined ethyl acetate layer was washed with brine, dried over anhydrous sodium sulphate and concentrated under reduced pressure to afford 3,4-dimethoxy-2-(methoxymethyl)phenylboronic acid as a solid.

Provenance & Evidence